History & Current Affairs Glossary

A regional economic crisis that began in Thailand and spread across East Asia, causing severe currency devaluations and recessions.

A severe worldwide economic crisis triggered by the collapse of the U.S. housing market and risky banking practices.

Terrorist attacks on September 11, 2001, in the United States by Al-Qaeda, killing nearly 3,000 and triggering the global [War on Terror](https://modeldiplomat.com/learn/glossary/war-on-terror).

The official report analyzing the circumstances leading to the September 11, 2001 terrorist attacks and recommendations to prevent future attacks. It influenced U.S. national security policy.

The first Persian empire (c. 550–330 BCE), founded by Cyrus the Great, which at its height stretched from the Balkans to the Indus Valley.

The period from the early 15th to the 17th century when European powers conducted overseas exploration, opening sustained contact between Europe, Africa, Asia, and the Americas.

An intellectual movement in 17th–18th century Europe that elevated reason, individual rights, and scientific inquiry over tradition and religious authority.

The period from roughly the early 15th to the 17th century when European powers undertook extensive overseas voyages, mapping new sea routes and establishing colonies.

The era, roughly the 16th to mid-19th centuries, when sailing ships dominated global trade, naval warfare, exploration, and imperial expansion.

A period of major change in farming practices that increased food production, enabled population growth, and reshaped political and economic structures.

A militant Islamist organization responsible for numerous terrorist attacks, including 9/11, opposing Western influence in Muslim countries.

The 1954–1962 anti-colonial war between the Algerian National Liberation Front (FLN) and France that ended 132 years of French rule in Algeria.

The late-18th-century conflict and political movement in which thirteen British North American colonies broke from Britain and founded the United States.

The Ancien Régime refers to the political and social system of France before the French Revolution.

A protracted conflict in Angola (1975–2002) between the MPLA government and rebel movements UNITA and FNLA, fueled by Cold War and regional rivalries.

A French historiographical movement that prioritizes long-term social, economic, and geographic structures over short-term political and diplomatic events.

A series of pro-democracy uprisings and protests across the Arab world beginning in 2010 that challenged authoritarian regimes.

1967 conflict where Israel fought Egypt, Jordan, and Syria, resulting in territorial gains for Israel.

The systematic destruction of Ottoman Armenians from 1915 to 1923 by the Ottoman government, resulting in roughly 1 to 1.5 million deaths.

An 1866 conflict between Prussia and Austria (with their respective German allies) that ended Austrian influence in German affairs and paved the way for German unification.

A 1955 meeting of Asian and African states promoting economic and cultural cooperation and opposing colonialism and neocolonialism.

The ten-point declaration on peaceful coexistence and decolonization adopted at the 1955 Asian-African Conference in Bandung, Indonesia.

The 1940 air campaign in which the British Royal Air Force defended the United Kingdom against sustained attack by Nazi Germany's Luftwaffe.

A decisive June 1942 naval battle in the Pacific Theater in which the United States defeated Japan's carrier strike force near Midway Atoll.

A major World War II battle between Nazi Germany and the Soviet Union that marked a turning point with the Soviet victory halting German advances into the USSR.

A failed 1961 U.S.-backed attempt by Cuban exiles to overthrow Fidel Castro's government in Cuba.

A 1948-1949 operation supplying West Berlin by air after Soviet forces blockaded the city.

A Soviet attempt in 1948-1949 to cut off Allied access to West Berlin, leading to the Western Allies' [Berlin Airlift](https://modeldiplomat.com/learn/glossary/berlin-airlift).

A meeting of European powers (1884–1885) convened in Berlin to regulate colonization and trade in Africa, formalizing the rules of the "Scramble for Africa."

A Cold War confrontation triggered by the Soviet demand to make West Berlin a demilitarized free city, which escalated tensions leading to the construction of the [Berlin Wall](https://modeldiplomat.com/learn/glossary/berlin-wall).

A fortified barrier constructed in 1961 dividing East and West Berlin, symbolizing Cold War divisions until its fall in 1989.

A 1967–1970 secessionist conflict in which the Republic of Biafra attempted to break away from Nigeria, ending in federal victory and a major famine.

The sustained German aerial bombing campaign against the United Kingdom from September 1940 to May 1941 during the Second World War.

A military tactic meaning "lightning war" involving fast, surprise attacks combining air and ground forces to quickly overwhelm enemies.

Two late-19th and early-20th century conflicts in southern Africa between the British Empire and the Dutch-descended Boer republics of the Transvaal and Orange Free State.

The October 1917 seizure of power in Petrograd by Lenin's Bolshevik faction, which toppled Russia's Provisional Government and founded the world's first communist state.

Armed conflict in Bosnia and Herzegovina (1992–1995) among Bosniak, Croat, and Serb forces following the breakup of Yugoslavia, ended by the Dayton Accords.

An anti-foreign, anti-Christian uprising in northern China (1899–1901) suppressed by an eight-nation military coalition, ending with the Boxer Protocol.

A 1944 gathering of 44 Allied nations that designed the postwar international monetary system, creating the IMF and the World Bank.

The United Kingdom's 2016 [Referendum](https://modeldiplomat.com/learn/glossary/referendum) decision and subsequent process to leave the European Union.

A period of human prehistory and early history defined by the widespread use of bronze tools and weapons, urbanization, writing, and long-distance trade.

The Greek-speaking, Christian continuation of the Roman Empire centered on Constantinople, lasting from late antiquity until the Ottoman conquest in 1453.

1978 peace agreement between Egypt and Israel brokered by the United States, marking a major step towards Middle East peace.

A July 2000 U.S.-hosted negotiation at Camp David between Israeli PM Ehud Barak and PLO Chairman Yasser Arafat that failed to produce a final-status agreement.

A largely bloodless military coup in Portugal on 25 April 1974 that overthrew the Estado Novo dictatorship and triggered democratization and decolonization.

A revival of learning, art, and administrative reform in the Frankish Empire under Charlemagne and his successors during the late 8th and 9th centuries.

A Phoenician-founded maritime and commercial power centered on Carthage in North Africa that dominated the western Mediterranean from roughly the 6th to the 3rd century BCE.

A prolonged armed conflict between the Chinese Nationalist (Kuomintang) government and the Chinese Communist Party that ended in Communist victory in 1949.

A term referring to the early 20th-century upheavals that ended imperial rule in China and the later communist victory of 1949 establishing the People's Republic.

A series of non-violent protests and movements in the early 21st century in post-Soviet states promoting democratic reforms and political change.

Nonviolent movements in the early 2000s in post-Soviet states aiming to bring democratic change through mass protests.

The transfer of plants, animals, people, diseases, and ideas between the Americas and Afro-Eurasia following Columbus's 1492 voyage.

The Committee of Public Safety was the executive government during the [Reign of Terror](https://modeldiplomat.com/learn/glossary/reign-of-terror), tasked with defending the revolution.

A period of political turmoil, secession, and foreign intervention in the newly independent Republic of the Congo from 1960 to 1965.

An early 19th-century framework of periodic great-power conferences used by European states to manage disputes and preserve the post-Napoleonic order.

A Cold War strategy aimed at preventing the spread of communism beyond its existing borders, primarily led by the United States.

The 2009 UN conference aimed at establishing a global agreement on [Climate Change Mitigation](https://modeldiplomat.com/learn/glossary/climate-change-mitigation), yielding limited consensus.

The Roman Catholic ecumenical council (1545–1563) that defined Counter-Reformation doctrine and reformed Church discipline in response to the Protestant Reformation.

The Catholic Church's internal reform and political response to the Protestant Reformation, roughly spanning the mid-16th to mid-17th centuries.

A method of historical analysis that asks "what if?" by altering a past event and reasoning through plausible alternative outcomes to test causation.

The global economic downturn caused by the COVID-19 pandemic disrupting supply chains, employment, and markets.

An 1853–1856 conflict pitting Russia against an alliance of the Ottoman Empire, Britain, France, and Sardinia, mainly fought on the Crimean Peninsula.

A 13-day 1962 confrontation between the U.S. and USSR over Soviet ballistic missiles deployed in Cuba, bringing the world close to nuclear war.

The diplomatic agreement in 1962 where the USSR agreed to remove missiles from Cuba in exchange for a US pledge not to invade and secret removal of US missiles from Turkey.

The 1959 overthrow of Cuba’s Batista government by Fidel Castro’s forces, leading to a communist state allied with the Soviet Union.

A decade-long political and social upheaval in China (1966–1976) launched by Mao Zedong to reassert ideological control and purge perceived class enemies.

The June 6, 1944 Allied invasion of Normandy, France, marking a turning point in World War II in Western Europe.

The 1995 peace agreement that ended the Bosnian War, establishing Bosnia and Herzegovina as a single state composed of two entities.

The Declaration of the Rights of Man and of the Citizen was a fundamental document of the French Revolution, outlining the rights and freedoms of individuals.

The process by which colonies gained independence from European powers, reshaping global political order after World War II.

The mid-20th-century process by which African colonies gained independence from European powers, reshaping the continent's political map and the United Nations.

A period of eased Cold War tensions during the 1970s marked by arms control agreements and increased diplomatic contact.

The 1954 battle in Vietnam where French forces were defeated, leading to the end of French colonial rule in Indochina.

The 1991 breakup of the USSR into 15 independent states, ending Soviet communist rule and the Cold War's bipolar order.

A Cold War belief that the fall of one country to communism would lead to the spread of communism in neighboring countries. It justified U.S. involvement in conflicts like Vietnam.

A late-19th-century French political scandal in which Jewish army officer Alfred Dreyfus was wrongly convicted of treason, exposing antisemitism and dividing the Republic.

Targeted aerial attacks using unmanned aircraft, often employed in counterterrorism operations to eliminate militants remotely.

A 1944 meeting in Washington, D.C. where the US, UK, USSR, and China drafted the blueprint for what became the United Nations Charter.

A 1598 decree by King Henry IV of France granting substantial civil rights and limited religious toleration to Huguenot Protestants.

The era of Japanese history from 1603 to 1868 during which the Tokugawa shogunate ruled Japan from Edo (modern Tokyo) under a centralized feudal system.

A series of armed conflicts (1642–1651) between Royalist supporters of King Charles I and Parliamentarians over governance, religion, and the limits of royal authority.

Equality was a foundational principle of the French Revolution, aiming to eliminate social hierarchies and ensure equal rights for all citizens.

The Estates-General was an assembly representing the three estates of France, convened in 1789 for the first time since 1614.

A Cold War dispute during the 1980s over Soviet SS-20 missiles and [NATO](https://modeldiplomat.com/learn/glossary/nato)'s deployment of Pershing II and cruise missiles in Europe.

A financial crisis starting in 2009 marked by sovereign debt problems in several European countries using the euro currency.

A financial crisis starting in 2009 involving sovereign debt problems in several European countries threatening the Eurozone's stability.

A 10-week armed conflict in 1982 between Argentina and the United Kingdom over the Falkland Islands, South Georgia, and the South Sandwich Islands.

The 1453 capture of the Byzantine capital by the Ottoman Empire under Sultan Mehmed II, ending the Eastern Roman Empire after roughly 1,100 years.

The opening of the Berlin Wall on 9 November 1989, which allowed free passage between East and West Berlin and accelerated the end of the Cold War.

The gradual political collapse of Roman authority in the western Mediterranean, conventionally dated to 476 CE when the last emperor in Italy was deposed.

The 1917 uprising in Russia that toppled Tsar Nicholas II, ended Romanov rule, and produced a dual-power system of Provisional Government and Petrograd Soviet.

Nazi Germany's program of systematic genocide against European Jews during World War II, resulting in the murder of approximately six million people.

A January 1918 peace program by U.S. President Woodrow Wilson outlining principles to end World War I, including self-determination and a league of nations.

An 1870–1871 conflict between the French Second Empire and a Prussian-led coalition of German states that ended French dominance in continental Europe and unified Germany.

Fraternity was a revolutionary ideal promoting unity and solidarity among citizens during the French Revolution.

A period of radical political and social upheaval in France (1789–1799) that ended absolute monarchy and reshaped European politics.

The mass killing of an estimated 1.5–2 million Cambodians by the Khmer Rouge regime under Pol Pot between 1975 and 1979.

The process by which separate German-speaking states merged into a single nation-state, completed in 1871 and revisited with East-West reunification in 1990.

Soviet policy of increased openness and transparency in government institutions and activities introduced in the 1980s under Mikhail Gorbachev.

A Soviet policy introduced by Mikhail Gorbachev promoting openness and transparency in government institutions and freedom of information.

The 1688–89 overthrow of England's James II by William of Orange and Parliament, establishing constitutional monarchy and parliamentary supremacy.

1998 peace agreement that helped end decades of conflict in Northern Ireland by establishing power-sharing institutions.

Mao Zedong's 1958–1962 campaign to rapidly transform China from an agrarian society into a socialist industrial power through collectivization and mass mobilization.

Stalin's campaign of mass political repression in the Soviet Union from roughly 1936 to 1938, marked by show trials, executions, and Gulag deportations.

A medieval stone-built city in southeastern Africa that served as the capital of a powerful Shona kingdom between roughly the 11th and 15th centuries.

The 1946–1949 armed conflict in Greece between the government's Western-backed national army and the communist-led Democratic Army of Greece.

Period of agricultural innovation from the 1940s to 1960s that increased food production worldwide through new technologies.

The 1990–1991 conflict in which a US-led coalition expelled Iraqi forces from Kuwait following Iraq's August 1990 invasion.

The 1791–1804 slave uprising and war of independence in the French colony of Saint-Domingue that produced Haiti, the first Black-led post-colonial state.

Chinese imperial dynasty (206 BCE–220 CE) that consolidated centralized bureaucratic rule and gave its name to the dominant Han Chinese ethnic identity.

The era of Japanese history from 794 to 1185, centered on the imperial capital Heian-kyō (Kyoto) and marked by aristocratic court culture and Fujiwara dominance.

The era from Alexander the Great's death in 323 BCE to the Roman annexation of Ptolemaic Egypt in 30 BCE, marked by Greek cultural diffusion across the Near East.

1975 agreement signed by 35 nations to improve relations between the Communist [Bloc](https://modeldiplomat.com/learn/glossary/bloc) and the West during the Cold War.

The formal agreement signed in 1975 as part of [The Helsinki Accords](https://modeldiplomat.com/learn/glossary/the-helsinki-accords), addressing security, cooperation, and human rights across Europe and North America. It served as a foundation for East-West dialogue.

The U.S. dropped an atomic bomb on Hiroshima on August 6, 1945, causing massive destruction and prompting Japan's eventual surrender in World War II.

The study of how history is written: the methods, sources, interpretive frameworks, and debates historians use to construct accounts of the past.

The systematic genocide of six million Jews and millions of others by Nazi Germany during World War II.

The man-made famine of 1932–1933 in Soviet Ukraine that killed millions of Ukrainians, widely recognized as a genocide against the Ukrainian people.

A decentralized political union of mostly German-speaking territories in central Europe that existed from the early Middle Ages until its dissolution in 1806.

A short-lived 1898 modernization drive in Qing China led by the Guangxu Emperor and reformist scholars, ended by a coup from Empress Dowager Cixi.

A prolonged series of conflicts (1337–1453) between the kingdoms of England and France over succession, territory, and feudal sovereignty.

A nationwide uprising in Hungary against Soviet-imposed communist rule, lasting from 23 October to 10 November 1956, ultimately crushed by Soviet military intervention.

The late-18th to 19th-century shift from agrarian and handicraft economies to mechanised factory production, powered by coal, steam, and later electricity.

A UN body that assesses scientific information related to climate change to inform policymakers worldwide.

Scientific assessments published periodically by the IPCC summarizing global climate change data and projections.

Comprehensive scientific assessments produced by the [Intergovernmental Panel](https://modeldiplomat.com/learn/glossary/intergovernmental-panel) on Climate Change evaluating climate change evidence and impacts.

An armed conflict between Iraq and Iran from September 1980 to August 1988, ending in a UN-brokered ceasefire with no significant territorial change.

The 1978–1979 uprising that overthrew Iran's monarchy under Shah Mohammad Reza Pahlavi and established an Islamic Republic led by Ayatollah Ruhollah Khomeini.

The 2003–2011 armed conflict in which a US-led coalition invaded Iraq, toppled Saddam Hussein, and occupied the country during a prolonged insurgency.

The prehistoric and early historic period in which iron metallurgy became the dominant technology for tools and weapons, succeeding the Bronze Age.

The political and ideological barrier dividing Eastern and Western Europe from 1945 until the end of the Cold War, symbolizing Soviet influence in Eastern Europe.

Winston Churchill's 1946 speech warning about Soviet expansion and the division of Europe into Eastern and Western blocs.

A jihadist militant group that controlled large parts of Iraq and Syria from 2014, known for extreme violence and terrorism.

The self-declared Islamic State's territorial control in parts of Iraq and Syria from 2014 to 2019, asserting a caliphate authority.

A long-standing territorial and political dispute between Israelis and Palestinians centered on land, [Sovereignty](https://modeldiplomat.com/learn/glossary/sovereignty), and rights.

A cultural, artistic, and intellectual movement originating in Italy roughly from the 14th to the late 16th century, marking the transition from medieval to early modern Europe.

The 19th-century political and military process, known in Italian as the Risorgimento, that consolidated the Italian peninsula into a single nation-state.

The Korean dynasty founded by Yi Seong-gye in 1392 that ruled the Korean Peninsula for over five centuries until 1897.

A Southeast Asian Hindu-Buddhist state centered in present-day Cambodia that ruled much of mainland Southeast Asia from roughly 802 to 1431 CE.

The Cambodian communist movement that ruled Cambodia from 1975 to 1979 under Pol Pot, responsible for the Cambodian genocide.

An ancient trading empire centered in northern Ethiopia and Eritrea that flourished from roughly the 1st to 7th centuries CE.

The 1953 [Ceasefire Agreement](https://modeldiplomat.com/learn/glossary/ceasefire-agreement) that paused the Korean War, establishing the Demilitarized Zone but not officially ending the conflict.

Armed conflict on the Korean Peninsula from 1950 to 1953 between North Korea and its communist allies and South Korea backed by a UN-led coalition.

An armed conflict in 1998–1999 between Yugoslav forces and Kosovo Albanian insurgents, ending after a NATO bombing campaign forced a Serbian withdrawal from Kosovo.

A coordinated Nazi pogrom against Jews across Germany and Austria on 9–10 November 1938, marked by mass destruction of synagogues, shops, and homes.

The 1870s political conflict between Otto von Bismarck's German Empire and the Roman Catholic Church over state control of education, clergy, and civil life.

A series of early-19th-century conflicts in which Spanish and Portuguese colonies in the Americas fought for and won political independence from European rule.

International organization founded after World War I to promote peace and cooperation but failed to prevent World War II.

A post-WWI framework under which former German and Ottoman territories were administered by Allied powers on behalf of the League of Nations.

A 1941 U.S. law allowing President Roosevelt to supply Allied nations with war materiel without immediate payment, ending effective American neutrality in WWII.

Liberty was a central aim of the French Revolution, advocating freedom from oppressive restrictions imposed by authority.

The 1934–1935 military retreat of Chinese Communist forces from Nationalist encirclement, which consolidated Mao Zedong's leadership of the CCP.

The 1992 treaty that founded the European Union, introduced EU citizenship, and set the path toward a single currency and common foreign policy.

A 1991 peace conference co-sponsored by the US and USSR that launched direct negotiations between Israel and its Arab neighbors for the first time.

A system of French fortifications built along the German border in the 1930s, famously bypassed by Germany through Belgium in 1940.

A Hindu-Buddhist thalassocracy based in eastern Java (c. 1293–c. 1527) that exerted influence across much of maritime Southeast Asia.

A West African Islamic empire (c. 1235–1670) centered on the upper Niger River, known for its gold wealth, trans-Saharan trade, and scholarly center at Timbuktu.

The secret U.S.-led research and engineering program during World War II that produced the first nuclear weapons, culminating in the 1945 atomic bombings of Japan.

A U.S. program providing over $12 billion in economic aid to rebuild Western European economies after World War II.

Economic assistance provided by the United States to Western European countries after World War II to rebuild economies and prevent the spread of communism.

An armed anti-colonial rebellion in British Kenya (1952–1960), led largely by Kikuyu fighters against settler land dispossession and colonial rule.

Maximilien Robespierre was a leading figure in the French Revolution, known for his role in the [Reign of Terror](https://modeldiplomat.com/learn/glossary/reign-of-terror).

A 1919 Chinese student-led protest and cultural movement opposing the Treaty of Versailles' Shandong settlement, which catalysed modern Chinese nationalism.

The 1868 political transformation that ended Tokugawa shogunate rule in Japan and restored imperial authority under Emperor Meiji, launching rapid modernization.

A 1910–1920 armed and political upheaval that ended the Díaz dictatorship and produced Mexico's 1917 Constitution, reshaping land, labor, and resource rights.

An 1846–1848 armed conflict between the United States and Mexico that ended with the Treaty of Guadalupe Hidalgo and a vast transfer of Mexican territory.

The imperial Chinese dynasty that ruled from 1368 to 1644, founded by Zhu Yuanzhang after expelling the Mongol Yuan Dynasty.

A 1939 non-aggression treaty between Nazi Germany and the Soviet Union that secretly divided Eastern Europe into [Spheres of Influence](https://modeldiplomat.com/learn/glossary/spheres-of-influence).

A protracted conflict (1977–1992) between Mozambique's ruling FRELIMO government and the RENAMO insurgency, ending with the Rome General Peace Accords.

A Persianate Islamic empire that ruled most of the Indian subcontinent from 1526 to 1857, founded by Babur and dissolved by the British after the 1857 Rebellion.

The "catastrophe" of 1948, referring to the mass displacement of Palestinian Arabs and destruction of Palestinian society during the establishment of Israel.

A series of conflicts (1803–1815) between Napoleonic France and shifting European coalitions that reshaped state borders, sovereignty, and international order.

The National Assembly was a revolutionary assembly formed by the Third Estate in 1789, marking a shift towards popular [Sovereignty](https://modeldiplomat.com/learn/glossary/sovereignty).

North Atlantic Treaty Organization, a military alliance formed in 1949 for [Collective Defense](https://modeldiplomat.com/learn/glossary/collective-defense) against Soviet aggression.

The process of adding new member states, primarily former Warsaw Pact countries, to the North Atlantic Treaty Organization after the Cold War.

The transition from nomadic hunter-gatherer life to settled agriculture and animal domestication, beginning roughly 12,000 years ago.

The 1961 establishment of the Non-Aligned Movement at the Belgrade Conference, uniting states that refused formal alignment with either Cold War bloc.

Periodic meetings of countries that chose not to formally align with either the United States or the Soviet Union during the Cold War to promote [Sovereignty](https://modeldiplomat.com/learn/glossary/sovereignty) and peaceful coexistence.

The Allied amphibious invasion of German-occupied France on 6 June 1944, opening a Western Front in World War II under the codename Operation Neptune.

The cultural, intellectual, and artistic revival that spread across Northern Europe in the 15th and 16th centuries, adapting Italian Renaissance ideas to local contexts.

The competition between the U.S. and USSR to develop and accumulate more powerful nuclear weapons during the Cold War.

The 1945 agreement that established the International Military Tribunal to prosecute major Nazi war criminals and defined crimes against peace, war crimes, and crimes against humanity.

A 1947 set of ten ethical principles for human medical experimentation, issued by US judges in the Doctors' Trial verdict at Nuremberg.

Antisemitic statutes enacted by Nazi Germany in 1935 that stripped Jews of German citizenship and criminalized marriage and relations between Jews and "Aryans".

Post-World War II military tribunals prosecuting prominent Nazi leaders for war crimes and [Crimes Against Humanity](https://modeldiplomat.com/learn/glossary/crimes-against-humanity).

The Bolshevik seizure of power in Petrograd in November 1917 that toppled Russia's Provisional Government and established Soviet rule under Lenin.

A 1953 CIA-led coup d'état that overthrew Iran’s Prime Minister Mohammad Mossadegh and strengthened the Shah's rule.

Nazi Germany's 1941 invasion of the Soviet Union, marking a major turning point in World War II on the Eastern Front.

The 1991 military campaign by coalition forces to liberate Kuwait from Iraqi occupation during the Gulf War.

The US-led military campaign launched in 2001 to dismantle [Al-Qaeda](https://modeldiplomat.com/learn/glossary/al-qaeda) and remove the Taliban from power in Afghanistan.

A failed Allied military operation in 1944 aiming to capture bridges in the Netherlands to advance into Germany quickly. It resulted in heavy casualties and delayed the end of World War II in Europe.

The 2011 U.S. Navy SEAL mission that killed Osama bin Laden in Pakistan, marking a major event in counterterrorism.

The codename for the Allied invasion of Normandy on June 6, 1944, marking the start of the liberation of Western Europe from Nazi control during World War II.

A secret US program that recruited German scientists, including former Nazis, after World War II to advance American military and space technology.

A sustained US bombing campaign against North Vietnam from 1965 to 1968 during the [Vietnam War](https://modeldiplomat.com/learn/glossary/vietnam-war).

A failed 1944 German military plot to assassinate Adolf Hitler and overthrow the Nazi government during World War II.

Two 19th-century conflicts (1839–1842 and 1856–1860) in which Britain, later joined by France, defeated Qing China and forced open Chinese markets and ports.

A Turkish-Muslim empire that ruled large parts of southeastern Europe, the Middle East, and North Africa from around 1299 until its dissolution in 1922.

A political and social movement aiming to unify African countries and people worldwide to promote independence and solidarity.

A nationalist movement aiming to unify Arab countries culturally and politically across the Middle East and North Africa.

A 2015 international treaty aiming to limit global warming to well below 2 degrees Celsius by reducing greenhouse gas emissions.

A radical revolutionary government that ruled Paris from 18 March to 28 May 1871, following France's defeat in the Franco-Prussian War.

The 1947 division of British India into the independent dominions of India and Pakistan along religious lines, triggering mass migration and communal violence.

The 1947 UN plan to divide Mandatory Palestine into separate Jewish and Arab states with an international zone for Jerusalem.

The era of U.S.-led international order, dating from 1945, characterized by American military, economic, and institutional primacy underwriting global stability.

The period of relative international stability, roughly 1815–1914, during which the British Empire acted as the dominant global naval and commercial power.

The period of relative stability across Eurasia under Mongol rule (roughly 13th–14th centuries) that enabled long-distance trade, diplomacy, and cultural exchange.

A roughly two-century period of relative peace and stability across the Roman Empire, conventionally dated from 27 BCE under Augustus to 180 CE under Marcus Aurelius.

A historical or projected period of relative peace in East Asia and beyond maintained primarily by Chinese power and diplomatic influence.

A 1555 treaty within the Holy Roman Empire that ended conflict between Catholic and Lutheran princes by letting each ruler set their territory's religion.

Surprise Japanese naval-air strike on the US Pacific Fleet at Pearl Harbor, Hawaii, on 7 December 1941, which brought the United States into World War II.

The 431–404 BCE conflict between Athens and its Delian League against Sparta and the Peloponnesian League, ending in Athenian defeat.

Economic and political restructuring policy initiated in the Soviet Union during the 1980s aimed at reforming the communist system.

The practice of dividing the past into named, bounded blocks of time (eras, ages, periods) to make historical analysis and comparison tractable.

A 1968 period of political liberalization in Czechoslovakia under Alexander Dubček, ended by a Warsaw Pact invasion in August of that year.

A 16th-century religious and political movement that split Western Christianity from the Roman Catholic Church and reshaped European state power.

Conflicts where two opposing powers support different sides without direct confrontation, common during the Cold War.

A Hellenistic Greek dynasty that ruled Egypt from 305 BCE until the Roman annexation in 30 BCE, founded by Ptolemy I Soter, a general of Alexander the Great.

A series of three wars fought between Rome and Carthage from 264 to 146 BCE that ended with Carthage's destruction and Roman dominance of the Mediterranean.

The last imperial dynasty of China, ruled by the Manchu Aisin Gioro clan from 1644 to 1912, whose collapse shaped modern East Asian geopolitics.

The Reign of Terror was a period of radical political upheaval and mass executions during the French Revolution.

A radical phase of the French Revolution (1793–1794) in which the Jacobin-led government executed thousands of perceived enemies to defend the republic.

A cultural, intellectual, and political movement in Europe, roughly 14th–17th centuries, marked by revived interest in classical antiquity and humanism.

A wave of liberal, nationalist, and democratic uprisings across Europe in 1848–1849 that challenged monarchical authority and the post-1815 conservative order.

The 19th-century political and social movement that unified the fragmented states of the Italian peninsula into the Kingdom of Italy.

The post-Republican Roman state, conventionally dated from 27 BCE under Augustus, which ruled the Mediterranean world and shaped Western law, governance, and diplomacy.

The period of ancient Roman government, traditionally dated 509–27 BCE, in which power was distributed among elected magistrates, the Senate, and popular assemblies.

Ongoing [Armed Conflict](https://modeldiplomat.com/learn/glossary/armed-conflict) beginning in 2014 involving Russian-backed separatists and Ukrainian government forces, escalating with Russia's 2022 full-scale invasion.

The 1917 sequence of uprisings in Russia that toppled the Romanov monarchy and brought the Bolsheviks to power, founding the world's first communist state.

The 1904–1905 war between the Russian Empire and the Empire of Japan over rival imperial interests in Manchuria and Korea, ending in Japanese victory.

A series of twelve wars fought between the Russian and Ottoman Empires from the 16th to the early 20th century over territory, religion, and Black Sea access.

An armed conflict in Rwanda from 1990 to 1994 between the Hutu-led government and the Tutsi-dominated Rwandan Patriotic Front (RPF), culminating in the 1994 genocide.

The 1994 mass slaughter of Tutsi ethnic group in Rwanda by the Hutu majority, resulting in approximately 800,000 deaths.

A rebel group that ended the 1994 [Rwandan Genocide](https://modeldiplomat.com/learn/glossary/rwandan-genocide) by defeating the Hutu-led government and taking control of Rwanda.

The 1972 Strategic Arms Limitation Talks agreement between the US and USSR that limited the number of intercontinental ballistic missiles and submarine-launched missiles to reduce nuclear tensions.

A 1979 agreement between the US and USSR aimed at limiting strategic nuclear weapons, which ultimately was never ratified due to the Soviet invasion of Afghanistan.

Strategic Arms Limitation Talks agreements between the U.S. and USSR aiming to limit nuclear weapons during the Cold War.

[Note: Likely a typo, intended SALT I Treaty listed above; skipping to a new term.]

The 1945 United Nations Conference on International Organization where delegates from 50 states drafted and signed the UN Charter.

The last pre-Islamic Persian empire (224–651 CE), founded by Ardashir I, that ruled Iran and much of the Near East as Rome and Byzantium's chief rival.

Pre-WWI German military strategy designed to avoid a two-front war by rapidly defeating France through Belgium before turning east against Russia.

A 1950 proposal by French foreign minister Robert Schuman to pool French and German coal and steel production, widely regarded as the founding act of European integration.

The roughly 1543–1687 transformation of European thought in which empirical observation, experiment, and mathematical reasoning displaced inherited classical and religious authority.

The rapid colonization and partition of nearly the entire African continent by European powers between roughly 1881 and 1914.

A wave of rapid industrialization from roughly the 1870s to 1914 marked by steel, electricity, chemicals, and mass production in Europe, the US, and Japan.

A Hellenistic successor state founded by Seleucus I Nicator after Alexander the Great's death, ruling much of the Near East from roughly 312 to 63 BCE.

An era of near-constant civil war in Japan, roughly 1467–1615, marked by the collapse of central Ashikaga authority and the rise of regional warlords (daimyō).

The 1857–58 uprising of Indian soldiers and civilians against East India Company rule, which led Britain to abolish the Company and impose direct Crown rule over India.

A network of overland and maritime trade routes connecting China, Central Asia, the Middle East, and the Mediterranean from roughly the 2nd century BCE to the 15th century CE.

A Korean kingdom that ruled parts of the Korean Peninsula from 57 BCE to 935 CE, unifying most of it from 668 CE under Unified Silla.

The 1986 treaty that revised the Treaty of Rome, set a deadline to complete the EEC single market by 1992, and expanded qualified majority voting.

The June 1967 war in which Israel defeated Egypt, Jordan, and Syria, capturing the Sinai, Gaza, West Bank, East Jerusalem, and Golan Heights.

A Polish trade union and broad social movement, founded in 1980, that became the first independent labor union in the Soviet bloc and helped end communist rule.

A West African state centered on the Niger River that, at its 16th-century peak, was one of the largest empires in African history.

A 2016 international tribunal ruling invalidating China's territorial claims in the South China Sea, a key regional dispute.

Ongoing territorial and maritime conflicts involving China and several Southeast Asian nations over islands and sea rights.

A 1936–1939 conflict in Spain between the Republican government and Nationalist rebels led by Francisco Franco, ending in a Nationalist dictatorship.

An 1898 conflict between the United States and Spain that ended Spanish colonial rule in Cuba, Puerto Rico, Guam, and the Philippines.

A wave of liberal, nationalist, and democratic revolutions that swept across much of Europe in 1848, demanding constitutions, civil rights, and national self-determination.

A maritime and commercial Buddhist thalassocracy based on Sumatra that dominated trade through the Strait of Malacca from roughly the 7th to 13th centuries.

Ongoing internal conflicts in Sudan involving ethnic, political, and resource disputes leading to humanitarian crises.

An [Armed Conflict](https://modeldiplomat.com/learn/glossary/armed-conflict) beginning in 2003 in Sudan's Darfur region involving government forces and rebel groups with massive humanitarian consequences.

Egypt's 1956 transfer of the Suez Canal Company from Anglo-French ownership to Egyptian state control, triggering the Suez Crisis.

1956 invasion of Egypt by Israel, Britain, and France after Egypt nationalized the Suez Canal, leading to international tensions.

A secret 1916 agreement between Britain and France dividing Ottoman territories in the Middle East into [Spheres of Influence](https://modeldiplomat.com/learn/glossary/spheres-of-influence) after World War I.

A massive civil war in Qing-dynasty China (1850–1864) led by Hong Xiuquan's Taiping Heavenly Kingdom against the imperial government.

Periods of heightened military tension between China and Taiwan, raising concerns over regional security.

A Chinese imperial dynasty (618–907 CE) known for territorial expansion, cosmopolitan culture, the Tang legal code, and a tributary system that shaped East Asian diplomacy.

The July 1794 overthrow of Maximilien Robespierre that ended the Reign of Terror and shifted the French Revolution toward a more conservative republican phase.

A 1618–1648 European conflict, fought largely in the Holy Roman Empire, that reshaped religion, sovereignty, and the foundations of modern international order.

Pro-democracy demonstrations in Beijing in spring 1989, suppressed by the Chinese military on the night of 3–4 June, killing hundreds to thousands of civilians.

The military government that ruled Japan from 1603 to 1868 under the Tokugawa clan, headed by a shōgun who governed in the name of the emperor.

Post-WWII military tribunal (1946–1948) that prosecuted Japanese leaders for war crimes, crimes against peace, and crimes against humanity.

The network of caravan routes across the Sahara Desert that connected West Africa to North Africa and the Mediterranean from roughly the 8th to the 19th centuries.

The 1918 peace treaty in which Soviet Russia exited World War I by ceding vast western territories to the Central Powers.

The 1951 treaty that established the European Coal and Steel Community, pooling coal and steel production among six Western European states.

The 1957 treaty signed by six Western European states that established the European Economic Community, a foundational step toward today's European Union.

A 1494 agreement dividing newly discovered lands outside Europe between Spain and Portugal, influencing colonial boundaries.

The 1920 post-WWI peace treaty between the Allied Powers and Hungary that redrew Hungary's borders, transferring roughly two-thirds of its territory to neighboring states.

The 1919 peace treaty that ended World War I and imposed heavy reparations and territorial losses on Germany.

The 1648 peace settlement ending the Thirty Years' War in the Holy Roman Empire and the Eighty Years' War between Spain and the Dutch Republic.

A three-legged transatlantic trading system, roughly 16th–19th centuries, exchanging European goods, enslaved Africans, and American raw commodities.

A secret 1882 defensive military pact among Germany, Austria-Hungary, and Italy that anchored European bloc politics until the First World War.

A U.S. policy announced in 1947 to provide economic and military aid to countries resisting communist influence, marking the start of containment strategy.

A 1947 UN General Assembly proposal to divide Mandatory Palestine into separate Jewish and Arab states with Jerusalem under international administration.

The period after the Cold War when the United States emerged as the sole global superpower with unmatched influence.

The establishment of the international organization in 1945 aimed at promoting peace, security, and cooperation among nations.

The non-violent 1989 transition in Czechoslovakia that ended four decades of one-party Communist rule and ushered in parliamentary democracy.

Vichy France was the regime governing the unoccupied part of France and its colonies from 1940 to 1944, collaborating with Nazi Germany during World War II.

A prolonged conflict from 1955 to 1975 between communist North Vietnam and anti-communist South Vietnam, with heavy U.S. involvement.

The 1946–1954 conflict between France and the Viet Minh independence movement that ended French colonial rule in Indochina and partitioned Vietnam.

U.S. strategy during the [Vietnam War](https://modeldiplomat.com/learn/glossary/vietnam-war) to gradually withdraw American troops and transfer combat roles to South Vietnamese forces. It aimed to reduce U.S. involvement while maintaining South Vietnam's resistance to communism.

A U.S. policy to transfer combat roles to South Vietnamese forces while gradually withdrawing American troops during the [Vietnam War](https://modeldiplomat.com/learn/glossary/vietnam-war).

The 2001–2021 armed conflict in Afghanistan that began with the US-led invasion to oust the Taliban and ended with the Taliban's return to power.

An armed conflict between the United States and the United Kingdom (with its Canadian colonies and Indigenous allies) fought from 1812 to 1815.

A global military campaign launched by the U.S. and allies after 9/11 to eliminate terrorist groups and prevent attacks.

A 1943 armed revolt by Jewish resistance fighters against Nazi German forces deporting the remaining inhabitants of the Warsaw Ghetto to extermination camps.

A Cold War mutual-defense alliance of Soviet-aligned socialist states in Eastern Europe, established in 1955 and dissolved in 1991.

The democratic German state that existed from 1919 to 1933, named after the city where its constitution was drafted.

A style of historical writing that frames the past as an inevitable march of progress toward liberal democracy, reason, and the present-day status quo.

A global conflict from 1914 to 1918 between the Allied and Central Powers that reshaped borders, empires, and the foundations of modern international order.

A global conflict from 1939 to 1945 pitting the Allied powers against the Axis powers, reshaping the international order and birthing the United Nations.

The February 1945 accord by which Roosevelt, Churchill, and Stalin set terms for ending World War II and shaping the postwar order in Europe and Asia.

A 1945 meeting between Churchill, Roosevelt, and Stalin to discuss Europe's postwar reorganization and the division of Germany.

The October 1973 war in which Egypt and Syria launched a coordinated surprise attack on Israeli-held territory, reshaping Middle East diplomacy and global oil politics.

A series of ethnic and territorial conflicts from 1991 to 2001 that accompanied the breakup of the Socialist Federal Republic of Yugoslavia.

A 1994 armed rebellion by indigenous groups in Mexico demanding rights and autonomy, highlighting post-Cold War indigenous movements.