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- 2018 Florida Amendment 4 (1)
- Britain's Exit from the European Union referendum, June 23, 2016 (2)
- Geneva Peace Conference (1)
- MeToo movement (3)
- U.S. Clean Air Act of 1963 (1)
- Thera, Eruption, ca. 1650 BCE (1)
- Trojan War (12th or 11th century BCE) (7)
- Nebuchadnezzar Captures Jerusalem, 586 BCE (1)
- Greco-Persian Wars, 499 BCE-449 BCE (6)
- Peloponnesian War, 431 BCE-404 BCE (4)
- Wars of Alexander the Great, 335 BCE-323 BCE (8)
- Battle of Actium, 2nd September 31 BC (1)
- Second Punic War, 218 BCE-201 BCE (3)
- Julius Caesar, Assassination, Rome, 44 BCE (3)
- Grigori Rasputin, Assassination, St. Petersburg, Russian Empire, December 30, 1916 (1)
- Crucifixion of Jesus Christ, ca. 30 C.E. (5)
- Great Fire of Rome, July 19, 64 (3)
- Great Jewish Revolt, 66-73 (4)
- Mt. Vesuvius Eruption (12)
- Bar Kokhba Revolt, Judaea, 132-136 (2)
- Sack of Rome, August 24, 410 (1)
- Fall of the Western Roman Empire, 476 (1)
- Battle of Roncevaux Pass, 778 (1)
- Norse Discovery of North America, 985 (1)
- Norman Conquest, 1066 (5)
- First Crusade, 1095-1099 (8)
- Second Crusade 1147-1149 (3)
- Third Crusade 1187-1192 (6)
- Fourth Crusade, 1202-1204 (2)
- Albigensian Crusade, 1209-1229 (2)
- First Barons' War, 1215-1217 (2)
- Fifth Crusade, 1217-1221 (2)
- Sixth Crusade 1228-1229 (1)
- Seventh Crusade 1248-1254 (2)
- Second Barons' War, 1264-1267 (1)
- Eighth Crusade 1270 (2)
- Ninth Crusade 1271-1272 (1)
- First War of Scottish Independence, 1296-1328 (1)
- Hundred Years' War, 1337-1453 (11)
- Black Death in Europe, 1348-1350 (16)
- Iroquois Confederacy Founded, 1451? (1)
- Wars of the Roses, 1455-1485 (5)
- Spanish Inquisition, 1475-1834 (1)
- (2)
- Spanish Conquest of the Americas, 1492-ca. 1650 (1)
- Columbus's First Voyage to America, 1492-1493 (5)
- Protestant Reformation, 1500-1650 (5)
- War of the League of Cambrai, 1508-1515 (1)
- Ottoman–Mamluk War, 1516–1517 (1)
- Smallpox Introduced in North America, 1516 (1)
- Spanish Conquest of the Aztec Empire, 1519-1521 (6)
- Magellan's Expedition of 1519-1522 (1)
- Field of Cloth of Gold, Balinghem, France, June 7-24,1520 (1)
- Ottoman-Habsburg Wars, 1526-1791 (2)
- English Protestant Reformation, 1529-1603 (2)
- Anne Boleyn, Execution, London, England, May 19, 1536 (3)
- Catholic Counter-Reformation, 1545-1648 (1)
- Anglo-Spanish War, 1585-1604 (1)
- Renaissance, 1450-1599 (6)
- Gunpowder Plot, 1605 (3)
- Landing at Jamestown, VA, May 13, 1607 (6)
- Anglo-Powhatan Wars (1)
- Thirty Years' War, 1618-1648 (3)
- Pilgrims Landing at Plymouth Rock, November 1620 (3)
- Signing of the Mayflower Compact, U.S., November 11, 1620 (2)
- Voyage of the Mayflower, 1620 (3)
- Powhatan Uprising, Jamestown, VA colony, March 22, 1622 (1)
- Puritans Establish Massachusetts Bay Colony, 1625 (1)
- Franco-Spanish War, 1635-1659 (1)
- Pequot War, 1636-1637 (1)
- Irish Rebellion and Cromwell's Invasion of Ireland, 1641-1650 (1)
- English Civil War, 1642-1651 (5)
- Wars of the Three Kingdoms, 1644-1650 (1)
- Restoration, England, 1660-1688 (4)
- Second Anglo-Dutch War, 1664-1667 (1)
- Great Plague of London, 1665-1666 (3)
- Great Fire of London, 1666 (3)
- Third Anglo-Dutch War, 1672-1674 (1)
- King Philip's War, 1675-1676 (1)
- Bacon's Rebellion, April 1676 (2)
- Pueblo Revolt, 1680-1692 (3)
- Jacobite Risings, 1689-1746 (2)
- Salem Witch Trials, 1692 (4)
- War of the Spanish Succession, 1701-1714 (3)
- Acts of Union (1)
- Stono Rebellion, 1739 (6)
- Great Awakening, New England, 1740-1742 (1)
- Battle of Culloden (1)
- Seven Years War, 1756-1763 (7)
- Industrial Revolution, 1760-1840 (5)
- French and Indian Wars, 1689-1763 (2)
- Pontiac's Rebellion, 1763-1766 (1)
- Quartering Act of 1765 (1)
- Stamp Act, 1765-1766 (7)
- Townshend Acts, 1767-1770 (1)
- Boston Massacre, MA, March 5, 1770 (10)
- Tea Act, 1773 (1)
- Boston Tea Party, MA, December 16, 1773 (7)
- American Colonial Period (pre-1775) (2)
- First Continental Congress Meets, September 1774 (2)
- Dunmore's War, 1774 (2)
- American Revolution, 1775-1783 (92)
- Dunmore's Proclamation, U.S., November 7, 1775 (1)
- Slavery and Abolition, 1776 - 1865 (62)
- Continental Congress Adopts the Articles of Confederation, November 15, 1777 (1)
- Constitutional Convention, Philadelphia, PA, 1787 (11)
- Shays's Rebellion, 1787 (2)
- French Revolution, 1789-1799 (21)
- Second Great Awakening, 1790-1840 (1)
- Miami Indian Wars, 1790-1795 (1)
- Haitian Independence Movement, 1791-1804 (3)
- Bill of Rights Ratified, U.S., December 15, 1791 (2)
- French Revolutionary Wars, 1792-1802 (1)
- Eli Whitney Patents Cotton Gin, 1793 (1)
- Whiskey Rebellion, 1794 (2)
- Jay's Treaty, London, England, November 19, 1794 (1)
- Alien and Sedition Act, 1798 (2)
- War of the Third Coalition, 1803-1806 (1)
- Louisiana Purchase, 1803 (4)
- Napoleonic Wars, 1803-1815 (1)
- Marbury v. Madison, Supreme Court Decision, U.S., February 24, 1803 (1)
- Lewis and Clark Expedition, 1803-1806 (11)
- Burr-Hamilton Duel, Weehawken, NJ, July 11, 1804 (3)
- International Slave Trade Ended with U.S., March 2, 1807 (1)
- British Parliament Passes Abolition of Slave Trade Bill, UK, March 25, 1807 (1)
- Embargo Act, U.S., December 22, 1807 (2)
- Peninsular War, 1808-1817 (1)
- Slave Trade Banned by Congress, U.S., January 1, 1808 (2)
- Mexican Revolution, 1810-1821 (1)
- Regency era (1)
- New Madrid Earthquakes, 1811-1812 (1)
- War of 1812 (20)
- Napoleon's Invasion of Russia, June 24-November 18, 1812 (4)
- Battle of York (1)
- Congress of Vienna, September 1814-June 1815 (1)
- Battle of Waterloo, June 18, 1815 (12)
- Erie Canal Construction, 1816-1825 (1)
- Missouri Compromise, 1820-1821 (1)
- Monroe Doctrine, 1823 (3)
- Underground Railroad, 1830s-1860s (8)
- Indian Removal Act, 1830 (1)
- Nat Turner's Insurrection, 1831 (12)
- Paris Uprising of 1832 (17)
- Black Hawk War, 1832 (4)
- British West Indian Emancipation, July 31, 1834 (1)
- Texas War for Independence, 1835-1836 (14)
- Panic of 1837 (2)
- Trail of Tears, 1838-1839 (4)
- Opium Wars, China, 1839-1860 (3)
- Amistad Revolt, Atlantic Ocean, July 2, 1839 (1)
- Council House Fight, San Antonio, TX, March 19, 1840 (1)
- Amistad Case, U.S. Supreme Court Decision, Washington, DC, March 9, 1841 (4)
- Oregon Trail Opened, 1843 (2)
- U.S. Annexation of Texas, 1845 (2)
- Mormon Pioneer Trail, 1846 (2)
- Mexican-American War, 1846-1848 (18)
- Irish Potato Famine, 1846-1850 (4)
- Donner Party, 1846-1847 (3)
- Oregon Treaty, June 15, 1846 (1)
- French Revolution, 1848 (2)
- Women's Suffrage Movement, 1848-1920 (15)
- California Gold Rush, 1849 (11)
- Taiping Rebellion, China, 1850-1864 (1)
- Fugitive Slave Act, U.S., September 18, 1850 (15)
- Compromise of 1850 (11)
- Great Exhibition of 1851 (1)
- Crimean War, 1853-1856 (3)
- Bleeding Kansas, 1854-1859 (26)
- Kansas-Nebraska Act Enacted, U.S., May 30, 1854 (8)
- Battle of Ash Hollow, NE, September 3, 1855 (1)
- Senator Charles Sumner beaten on Senate floor, May 22, 1856 (3)
- Supreme Court Judge Stabs Member of Vigilance Committee, June 21, 1856 (1)
- Dred Scott Decision, 1857 (13)
- Indian Mutiny, 1857-1858 (3)
- Mountain Meadows Massacre, Utah, September 7 - 11, 1857 (2)
- Transatlantic Cable Completed, August 16, 1858 (1)
- Lincoln-Douglas Debates, 1858 (4)
- Harpers Ferry Raid, VA, October 16, 1859 (33)
- John Brown, Execution, Charles Town, WV, December 2, 1859 (20)
- American Labor Movement, 1860-1980 (2)
- Burke and Wills Expedition, 1860-1861 (1)
- French Intervention in Mexico, 1861-1867 (1)
- Navajo Wars, 1861-1864 (1)
- U.S. Civil War, 1861-1865 (247)
- Apache Wars, 1861-1886 (2)
- Homestead Act, 1862 (2)
- Reconstruction, US, 1865-1877 (96)
- Red Cloud's War, 1866-1868 (4)
- Construction of the Transcontinental Railroad, 1866-1869 (10)
- Comanche Campaign, 1867-1875 (4)
- Meiji Restoration, Japan, February 3, 1867 (1)
- Treaty of Fort Laramie, Fort Laramie, WY, April 29, 1868 (1)
- Fort Laramie Treaty between the U.S. and Sioux, November 6, 1868 (2)
- Franco-Prussian War, 1870-1871 (1)
- Boss Tweed Indicted for Fraud, NY, 1871-1873 (1)
- Indian Appropriations Act, 1871 (1)
- Camp Grant Massacre, Fort Grant, AZ, April 30, 1871 (1)
- Paris Commune, March-May, 1871 (2)
- Chicago Fire, October 8-10, 1871 (6)
- Panic of 1873 (1)
- Black Hills Gold Rush, Dakota Territory, 1874-1877 (1)
- Red River War, TX, 1874-1875 (1)
- Coushatta Massacre, Coushatta, LA, August 1874 (3)
- Centennial Exposition, Philadelphia, PA, 1876 (2)
- Jim Crow laws, 1876 - 1965 (3)
- Jim Crow laws, 1876-1965 (9)
- Great Sioux War, 1876-1877 (12)
- Gilded Age, 1877-1899 (2)
- Great Railroad Strike, United States, July 14-September 4, 1877 (2)
- Nez Perce War, 1877 (1)
- Hatfield-McCoy Feud, U.S., 1878-1891 (3)
- Lincoln County War, New Mexico, 1878 (1)
- American Industrial Era, 1880s-1930 (5)
- Construction of the Panama Canal, 1881 to 1915 (3)
- Gunfight at the O.K. Corral, AZ, 1881 (5)
- James Garfield Shot, July 2, 1881 (2)
- Chinese Exclusion Act Passed, United States, 1882 (6)
- Krakatoa eruption, 1883 (1)
- Scramble for Africa, 1884-1914 (1)
- Haymarket Incident, May 4, 1886 (4)
- Dawes Act Divides Indian Tribal Land into Individual Allotments, February 8, 1887 (1)
- Oklahoma Land Rush, April 22, 1889 (1)
- Johnstown Flood, PA, May 31, 1889 (1)
- Ghost Dance Movement, 1889-1890 (1)
- Sherman Antitrust Act, 1890 (3)
- Pine Ridge Campaign, U.S., 1890-1891 (4)
- Sitting Bull, Killed, Standing Rock Reservation, SD, 1890 (1)
- Geary Act Passed, United States, 1892 (1)
- Homestead Strike, Homestead, PA, June 30th-November 20th, 1892 (2)
- Panic of 1893-1896 (2)
- World's Columbian Exposition, Chicago, May-Oct, 1893 (7)
- First Sino-Japanese War, 1894-1895 (1)
- Pullman Rail Strike, 1894 (13)
- Dreyfus Affair, France, 1894-1906 (2)
- First Italo-Ethiopian War, Ethiopia, 1895-1896 (1)
- Cuban War of Independence, 1895-1898 (3)
- Plessy v. Ferguson, Supreme Court Decision, U.S., 1896 (5)
- U.S. Annexation of Hawai'i, 1898 (3)
- Spanish-American War, 1898 (18)
- Philippine-American War, 1899-1902 (4)
- American Frontier and Westward Expansion, pre-1890s (6)
- Boxer Rebellion, China, 1900 (4)
- Boer War, 1899-1902 (1)
- Galveston Hurricane, September 8, 1900 (2)
- San Francisco plague, 1900–1904 (1)
- William Jennings Bryan, Flag of an Empire Speech, August 8, 1900 (1)
- William McKinley, Assassination, Buffalo, NY, September 6, 1901 (3)
- Coal Strike, PA, May 12-October 23, 1902 (1)
- Wright Brothers' First Flight, Kitty Hawk, NC, 1903 (9)
- Herero and Namaqua Genocide, Namibia, 1904-1907 (2)
- Louisiana Purchase Exposition, St. Louis, MO, April 30 - December 1, 1904 (1)
- Russo-Japanese War, 1904-1905 (1)
- Russian Revolution, 1905 (5)
- Asiatic Law Amendment Ordinance, 1906 (1)
- Dreyfus Affair, 1894-1906 (1)
- Pure Food and Drug Act, 1906 (1)
- San Francisco Earthquake and Fire, April 18-21, 1906 (12)
- Panic of 1907 (2)
- Stolen Generations, Australia, 1909-1969 (2)
- Amundsen's South Pole Expedition, 1910-1912 (2)
- Mexican Revolution, 1910-1920 (12)
- Great Migration (United States African Amercians), 1910-1930 (2)
- Great Fire of 1910, Northwest United States, August 20-21, 1910 (1)
- Triangle Shirtwaist Company Fire, New York, NY, March 25, 1911 (6)
- Chinese Revolution, 1911-1912 (2)
- Titanic Sinks, April 15, 1912 (8)
- Francisco I. Madero, Assassination, Mexico City, February 22, 1913 (1)
- Clayton Antitrust Act (1)
- World War I, 1914-1918 (219)
- East St. Louis Massacre, IL, July 7, 1917 (1)
- Russian Revolution, 1917-1921 (25)
- Spanish Flu Pandemic, 1918-1919 (4)
- Russian Civil War, 1918-1920 (1)
- Anglo-Irish War, 1919-1921 (1)
- Prohibition, U.S., 1919-1933 (61)
- Rowlatt Act Passed, London, England, March 10, 1919 (1)
- Amritsar Massacre, April 13, 1919 (2)
- Chicago Race Riot of 1919 (2)
- Arrest and Trial of Nicola Sacco & Bartolomeo Vanzetti, 1920 (3)
- Harlem Renaissance, 1920-1939 (5)
- First International Convention of the Negro Peoples of the World, 1920 (1)
- Tulsa race massacre, May 31 - June 1, 1921 (3)
- Herrin Massacre, IL, July 21-22, 1922 (1)
- Irish Civil War, 1922-1923 (2)
- Soviet Union, 1922-1991 (98)
- Tomb of Tutankhamun Discovered, Egypt, November 1922 (3)
- Beer Hall Putsch, Munich, Germany, November 8-9, 1923 (2)
- Scopes Monkey Trial, Dayton, TN, 1925 (3)
- Buck v. Bell, Supreme Court Decision, U.S., 1927 (1)
- Charles Lindbergh's Transatlantic Flight, 1927 (1)
- Sacco and Vanzetti, Execution, Boston, MA, August 23, 1927 (5)
- Chinese Civil War, 1927-1950 (4)
- Mississippi River Flood 1927 (2)
- Dust Bowl, 1928-1935 (8)
- Great Depression, 1929-1941 (331)
- Salt March, Gujarat, India, March 12, 1930 - April 6, 1930 (1)
- Salt Satyagraha, India, May 1930 (2)
- Scottsboro Case, AL, 1931 (4)
- Mukden Incident, September 18, 1931–February 18, 1932 (18)
- Salazar's Dictatorship, Portugal, 1932-1968 (1)
- Tuskegee Syphilis Study, Alabama, 1932-1972 (3)
- Charles Lindbergh, Jr., Kidnapped and Killed, East Amwell, NJ, March 1-May 12, 1932 (27)
- Nazino Affair, Siberia, 1933 (1)
- Adolf Hitler, Assumes Dictatorship of Germany, March 23, 1933 (21)
- Adolf Hitler, Becomes Fuhrer of Germany, August 19, 1933 (3)
- U.S. Indian Civil Rights, 1934- (3)
- Night of the Long Knives, Germany, June 30-July 2, 1934 (3)
- Alexander I of Yugoslavia, Assassination, France, October 9, 1934 (4)
- Social Security Act, U.S., 1935 (2)
- Edward VIII, Abdication Crisis, UK, 1936 (4)
- Arab Revolt, 1936-1939 (1)
- Spanish Civil War, 1936-1939 (53)
- Moscow Purge Trials, 1936-1938 (1)
- Memorial Day Massacre, Chicago, IL, May 30, 1937 (1)
- Trinidad Labor Riots, 1937 (1)
- Second Sino-Japanese War, 1937-1945 (128)
- Hindenburg Disaster, 1937 (17)
- Amelia Earhart, Disappearance, July 2, 1937 (6)
- Munich Conference, 1938 (6)
- Holocaust, 1939-1945 (142)
- Winter War, 1939-1940 (6)
- World War II, 1939-1945 (2110)
- Second Great Migration (United States African Americans), 1940-1970 (2)
- Great Escape from Stalag Luft III, 1944 (2)
- United Nations Founded, 1945 (13)
- Liberation of Ohrdruf Concentration Camp, April 4, 1945 (1)
- Franklin D. Roosevelt dies, April 12, 1945 (1)
- Cold War, 1945-1989 (656)
- First Indochina War, 1946-1954 (78)
- Morgan v. Virginia, Supreme Court Decision, U.S., 1946 (5)
- Kielce Pogrom, Poland, July 4, 1946 (1)
- First Supersonic Flight, Mojave Desert, 1947 (2)
- Partitioning of India and Pakistan, 1947 (10)
- Partition of Bengal, 1947 (2)
- India-Pakistan War, 1947-1948 (2)
- Journey of Reconciliation, Durham, NC, April 9–23, 1947 (4)
- Arab-Israeli War, 1948 (2)
- Internal Conflict in Burma, 1948- (13)
- Israeli-Palestinian Conflicts, 1948- (87)
- Mahatma Gandhi, Assassination, New Delhi, India, January 30, 1948 (4)
- Apartheid, South Africa, 1948-1994 (90)
- Hanshin Education Incident, Japan, April 1948 (1)
- Israeli Independence Declared, May 14, 1948 (12)
- Universal Declaration of Human Rights Adopted, December 10, 1948 (1)
- Chicano Movement, 1949-1978 (2)
- Fair Deal, 1949 (1)
- Geneva Conventions, 1949 (1)
- Korean Conflict, 1950-1953 (329)
- Mau Mau Uprising, 1952-1960 (3)
- Mount Everest Expedition, April-June 1953 (10)
- Iran, Coup d'Etat, August 19, 1953 (1)
- Algerian War of Independence, 1954-1962 (27)
- U.S. Civil Rights Movement, 1954- (498)
- Geneva Conference, 1954 (2)
- Argentina, Coup d'Etat, September 16, 1955 (3)
- Suez Crisis, 1956 (30)
- Cuban Revolution, 1956-1959 (41)
- SS Andrea Doria, Sinks, July 26, 1956 (1)
- Vietnam War, 1956-1975 (591)
- Space Race, 1957-1975 (137)
- Ghana Becomes Independent, March 6, 1957 (2)
- Great Leap Forward, China, 1958 (3)
- Alaskan Statehood, January 3, 1959 (1)
- Congo Crisis, 1960-1966 (2)
- Nashville Lunch-Counter Desegregation Sit-ins, February-April 1960 (1)
- Second Wave Feminism, 1960-1990 (5)
- Nicaraguan Revolution, 1960s-1990 (6)
- Boynton v. Virginia, Supreme Court Decision, U.S., 1960 (2)
- Guatemalan Civil War, 1960-1996 (6)
- Ethiopia-Eritrea Conflict, 1961-1978 (2)
- Patrice Lumumba, Assassination, Congo, January 17, 1961 (3)
- Trinidad & Tobago Independence, August 31, 1962 (1)
- Profumo Affair, UK, 1963 (1)
- Iraqi Coup d'Etat, February 8, 1963 (1)
- Great Train Robbery, Ledburn, England, August 8, 1963 (1)
- John F. Kennedy, Assassination, Dallas, TX, November 22, 1963 (50)
- Berkeley Free Speech Movement, 1964-1965 (7)
- Colombian Conflict, 1964- (7)
- Women's Liberation Movement, 1964-1980 (3)
- Great Society, United States, 1964-1969 (7)
- Good Friday Earthquake, Southern Alaska, March 27, 1964 (1)
- Brazil Military Dictatorships, 1964-1985 (4)
- Lyndon B. Johnson, The Great Society Speech, May 22, 1964 (1)
- Nelson Mandela Imprisonment, June 12, 1964-February 2, 1990 (2)
- Beat Generation, 1950's-1960's (1)
- Delano Grape Strike, CA, 1965-1970 (1)
- Black Arts Movement, 1965-1976 (2)
- Indonesian Killings of 1965-1966 (3)
- Cultural Revolution, China, 1966-1972 (8)
- Black Power Movement, 1966-1975 (1)
- U.S. Civil Rights Movement, 1966- (33)
- Palomares B-52 Crash, January 17, 1966 (1)
- University of Texas Tower Shooting, August 1, 1966 (3)
- Aberfan Colliery Collapse, Wales, October 21, 1966 (2)
- 1966 Flood of the Arno (1)
- Che Guevara, Execution, Bolivia, October 7, 1967 (3)
- Nigerian Civil War, 1967-1970 (1)
- Greek Military Junta, 1967-1974 (1)
- Australian Referendum, 1967 (Aboriginals) (1)
- Six Day War, June 5-10, 1967 (10)
- Monterey Pop Festival, CA, June 16-18, 1967 (2)
- Biafran War, July 6, 1967–January 15, 1970 (1)
- Troubles of Northern Ireland, 1968-1998 (14)
- Violence at the Democratic National Convention, Chicago, August 29, 1968 (5)
- Battle of Maria Antonia, October 2, 1968 (1)
- Sir George Williams Computer Riot, 1969 (1)
- Stonewall Riots, Greenwich Village, NY, June 28, 1969 (52)
- Woodstock Festival, Bethel, NY, August 15-18, 1969 (2)
- Strategic Arms Limitation Talks (SALT) (4)
- FBI Raid on Black Panthers, Chicago, IL, December 4, 1969 (1)
- Apollo 13 Moon Mission, April 11-17, 1970 (13)
- Cambodian Civil War, 1970-1975 (13)
- Treaty on the Non-Proliferation of Nuclear Weapons, 1970 (1)
- New York Gay Liberation Day March, Greenwich Village, NY, June 28, 1970 (2)
- Fort Dummer Established, VT, 1724 (1)
- Ugandan Coup d'Etat, 1971 (2)
- Bangladesh Liberation War, March 26-December 16, 1971 (12)
- U.S. Clean Water Act of 1972 (1)
- Watergate Scandal, 1972-1975 (45)
- First Burundian Genocide, April 27-30, 1972 (1)
- Munich Massacre at the Olympics, September 5-6, 1972 (3)
- Trans-Amazonian Highway, 1972 (1)
- Augusto Pinochet's Dictatorship, Chile, 1973-1990 (13)
- Chile, Coup d'Etat, September 11, 1973 (7)
- Yom Kippur War, October 6-26, 1973 (7)
- Princess Anne, Attempted Kidnapping, London, England, March 20, 1974 (2)
- Cyprus Crisis, July 15-24, 1974 (2)
- Cambodian Holocaust, 1975-1979 (17)
- Massacre at Po Chrey, Cambodia, April 1975 (3)
- Chad Conflicts, 1975-1990 (1)
- Lebanese Civil War, 1975-1990 (5)
- Angolan Civil War, 1975-2002 (2)
- Indonesian Occupation of East Timor, December 1975-October 1999 (1)
- United States Bicentennial, 1976 (2)
- Argentine Dirty War, 1976-1983 (9)
- Air France Flight 139, Hijacking,1976 (1)
- First Transatlantic Flight of the Concorde Jet Completed, 1977 (4)
- Iranian Revolution, 1978-1979 (30)
- Wars in Afghanistan, April 27, 1978– (76)
- Aldo Moro, Assassination, Rome, Italy, May 9, 1978 (1)
- Camp David Accords, 1978 (3)
- Jonestown Mass Suicide, Guyana, November 18, 1978 (3)
- Harvey Milk, Assassination, San Francisco, CA, November 27, 1978 (1)
- 1979 Energy Crisis, United States (3)
- Three Mile Island Accident, Dauphin County, Pennsylvania, March 28, 1979 (1)
- Salvadoran Civil War, 1979-1992 (10)
- Iranian Embassy Siege, 1980 (4)
- Peruvian Internal Conflict, 1980- (3)
- Mount St. Helens Erupts, May 18, 1980 (4)
- Gwangju Uprising, May 18, 1980 (1)
- Iran-Iraq War, 1980-1988 (11)
- John Lennon, Killed, New York, NY, December 8, 1980 (4)
- Anwar Sadat, Assassination, Cairo, Egypt, October 6, 1981 (3)
- Pope John Paul II, Assassination Attempt, Vatican City, May 13, 1981 (2)
- Ronald Reagan, Assassination Attempt by John Hinckley, March 30, 1981 (6)
- Brink's Robbery, Nanuet, NY, October 20, 1981 (1)
- Martial law in Poland, December 13, 1981-July 22, 1983 (1)
- Pope John Paul II, Assassination Attempt, Fátima, Portugal, May 12, 1982 (1)
- Falkland Islands War, 1982 (18)
- Sabra and Shatila Massacre, West Beirut, Lebanon, September 16-18, 1982 (1)
- Bombing of U.S. Marine Barracks in Beirut, 1983 (2)
- Sri Lankan Civil War, 1983-2009 (8)
- Sudanese Civil War, 1983- (10)
- Ethiopian Famine, 1983-1985 (1)
- U.S. Invasion of Grenada, October 25, 1983 (2)
- Indira Gandhi, Assassination, New Delhi, India, October 31, 1984 (5)
- U.K. Miners' Strike, March 1984-March 3, 1985 (1)
- Nkomati Accord Signed, March 16, 1984 (1)
- Operation Blue Star, Amritsar, India, June 3-6, 1984 (1)
- Grand Hotel Bombing, Brighton, England, October 12, 1984 (2)
- Operation Moses, November 21, 1984 - January 5, 1985 (1)
- Bhopal Gas Tragedy, India, December 2-3,1984 (4)
- Heysel Stadium disaster, 1985 (1)
- Iran-Contra Affair, 1985-1987 (16)
- TWA Flight 847, Hijacking, June 14-30, 1985 (2)
- Live Aid Concert, July 13, 1985 (1)
- Mexico City earthquake, September 19, 1985 (1)
- Achille Lauro, Hijacking, Egypt, October 7-10, 1985 (2)
- Rome and Vienna Airport Attacks, 1985 (1)
- Joseph Kony LRA Leadership, Uganda, 1986- (5)
- Space Shuttle Challenger Explosion, 1986 (15)
- U.S. Bombing of Libya, 1986 (2)
- Perestroika, Soviet Union, 1986-1991 (2)
- U.S. savings and loan crisis, 1986-1995 (1)
- Chernobyl Nuclear Power Plant Disaster, Pripyat, Ukraine, April 26, 1986 (15)
- Lord’s Resistance Army, Uganda, 1987-2005 (8)
- Second National March on Washington for Lesbian and Gay Rights, October 11, 1987 (1)
- King's Cross Fire, London, England, November 18, 1987 (1)
- First Intifada, Palestine, December 1987-1993 (4)
- Pan Am Flight 103, Lockerbie, Scotland, December 21, 1988 (5)
- Revolutions of Eastern Europe, 1989 (25)
- Third Republic, Hungary, 1989- (1)
- Liberian Civil War, 1989-2003 (5)
- U.S. Invasion of Panama, December 12, 1989 (1)
- Tiananmen Square Massacre, Beijing, China, April-June 1989 (10)
- San Francisco Earthquake, October 17, 1989 (1)
- Velvet Revolution, Czechoslovakia, 1989 (1)
- Jamaat al Muslimeen attempted coup of Trinidad & Tobago (11)
- Rajiv Gandhi, Assassination, Sriperumbudur, India, May 29, 1991 (2)
- Persian Gulf War, 1991 (31)
- Sierra Leone Civil War, 1991-2002 (5)
- Strategic Arms Reduction Treaty, 1991 (1)
- Soviet Coup d'Etat Attempt, August 19-21, 1991 (1)
- Clarence Thomas-Anita Hill Hearings, October 1991 (5)
- Dissolution of the Union of Soviet Socialist Republics, December 26, 1991 (1)
- Maastricht Treaty, 1992 (2)
- Somalia Intervention, 1992-1993 (5)
- Yugoslav Wars, 1992-1995 (36)
- Bosnian War, Bosnia and Herzegovina, 1992-1995 (24)
- Tajikistan Civil War, 1992–1997 (1)
- FBI Siege of Randy Weaver at Ruby Ridge, ID, 1992 (2)
- Israeli-Palestinian Conflict, 1993- (6)
- World Trade Center Bombing, 1993 (4)
- FBI Siege of Branch Davidian Compound at Waco, TX, 1993 (3)
- Great Flood of 1993 (1)
- March on Washington for Lesbian, Gay and Bi Equal Rights and Liberation, April 25, 1993 (1)
- World Conference on Human Rights, Vienna, Austria, June 14-25, 1993 (4)
- Second Burundian Genocide, October 1993 (1)
- Burundian Civil War, October 21, 1993-August, 2005 (1)
- Don't Ask, Don't Tell, Policy on Gays in the Military, U.S., 1993-2011 (6)
- Israel-Jordan Treaty of Peace, 1994 (3)
- Post Apartheid South Africa, 1994- (9)
- Post Genocide Rwanda, 1994- (9)
- Chechen Civil War, 1994- (2)
- Zapatista Rebellion, Chiapas, Mexico, 1994 (2)
- O.J. Simpson Trial, 1994-1995 (1)
- Passage of the North American Free Trade Agreement, January 1, 1994 (2)
- Rwandan Civil War and Genocide, April 7–July 15, 1994 (21)
- AMIA Bombing, Buenos Aires, Argentina, July 18, 1994 (1)
- First Chechen War, 1994-1996 (2)
- Aum Shinrikyo Sarin Attack on the Tokyo Subway, 1995 (2)
- Oklahoma City Bombing, Oklahoma City, OK, April 19, 1995 (8)
- Yitzhak Rabin, Assassination, Tel Aviv, Israel, November 4, 1995 (4)
- Ken Saro-Wiwa, Execution, Nigeria, November 10, 1995 (1)
- Albanian Civil War, 1997 (2)
- Hong Kong Transfer of Sovereignty to China, July 1, 1997 (3)
- Million Woman March, Philadelphia, PA, October 25, 1997 (1)
- Kyoto Protocol, December 11, 1997 (2)
- Bombing of U.S. Embassy in Nairobi, Kenya, August 7, 1998 (2)
- Kosovo War, 1998-1999 (18)
- Argentine Economic Depression, 1998-2003 (2)
- Second Congo War, 1998-2003 (1)
- Eritrean-Ethiopian War, 1998-2000 (1)
- Bombing of U.S. Embassy in Dar es Salaam, Tanzania, August 7, 1998 (2)
- Democratization, Nigeria, 1999- (1)
- East Timorese Crisis, 1999 (1)
- Columbine High School Massacre, April 20, 1999 (8)
- Second Chechen War, 1999-2009 (2)
- Bombing of the USS Cole, October 12, 2000 (5)
- Second Intifada, September 2000-2005 (2)
- Global Counter Terrorism, 2001- (39)
- Ivory Coast Civil War 2001-2003 (1)
- September 11 Terrorist Attacks, 2001 (158)
- Godhra train burning (1)
- Bali Bombings, October 12, 2002 (1)
- Moscow Theatre Hostage Crisis, October 23-26, 2002 (1)
- Darfur Conflict, Sudan, 2003- (5)
- Space Shuttle Columbia Disaster, 2003 (5)
- Iraq War, 2003-2011 (139)
- Rose Revolution, Georgia (Country), November 3 - 23, 2003 (1)
- Indian Ocean Earthquake and Tsunami, December 26, 2004 (18)
- Madrid Bombings, March 11, 2004 (2)
- Beslan School Massacre, Russia, September 1, 2004 (1)
- Orange Revolution, Ukraine, 2004-2005 (2)
- London Terrorist Bombings, England, July 7, 2005 (4)
- Hurricane Katrina, August 23-30, 2005 (46)
- Jyllands-Posten Muhammad Cartoons Controversy, Denmark, 2005 (1)
- Lebanon War, July 12-August 14, 2006 (4)
- 2007-2008 Financial Crisis (2)
- Virginia Tech Massacre, Blacksburg, Virginia, April 16, 2007 (4)
- Battle of Gaza, June 10, 2007 - June 15, 2007 (1)
- Recession. December 2007-June 2009 (6)
- Benazir Bhutto, Assassination, Rawalpindi, Pakistan, December 27, 2007 (2)
- Proposition 8 to Ban Gay Marriage Passes, California, 2008 (1)
- Sichuan earthquake, May 12, 2008 (4)
- Mumbai Terrorism Attacks, November 26-29, 2008 (1)
- Gaza War, 2008-2009 (1)
- Iranian Presidential Election Protests, 2009 (1)
- Haiti Earthquake, January 12, 2010 (6)
- Upper Big Branch Mine Disaster, Raleigh County, WV, April 5, 2010 (1)
- Deepwater Horizon Oil Spill, Gulf of Mexico, April 20-July 15, 2010 (14)
- Arab Spring, 2010-2013 (11)
- 2011 Egyptian Revolution (2)
- Thawret 25 yanāyir (1)
- Libyan Civil War, 2011 (2)
- Tōhoku earthquake and tsunami, March 11, 2011 (4)
- Fukushima Daiichi Nuclear Disaster, March 11, 2011 (18)
- Syrian Civil War, 2011- (24)
- Osama bin Laden, Assassination, Abbottabad, Pakistan, May 2, 2011 (4)
- Hurricane Irene, August 26-30, 2011 (5)
- Occupy Movement, September 17, 2011- (1)
- Killing of Rekia Boyd, March 21, 2012 (1)
- Hurricane Sandy, October 22-23, 2011 (6)
- Shooting of Jordan Davis, Jacksonville, FL, November 23, 2012 (1)
- Sandy Hook Elementary School Shooting, Newtown, Connecticut, December 12, 2012 (16)
- Boston Marathon Bombings, April 15, 2013 (9)
- Russo-Ukrainian War, 20 February 2014 to present (20)
- Disappearance of Malaysia Airlines Flight MH370, March 8, 2014 (1)
- Yemeni Civil War, 2015 - Present (3)
- Charleston Church Shooting, June 17, 2015 (1)
- Paris Attacks, November 13, 2015 (1)
- Women's March, January 21 - 22, 2017 (1)
- Khan Shaykhun chemical attack, 4th April, 2017 (1)
- Hurricane Maria, September 16 - October 3, 2017 (7)
- Las Vegas shooting, October 1, 2017 (1)
- Parkland High School Shooting, February 14, 2018 (2)
- COVID-19 Pandemic (2020-2023) (68)
- Attack of the United States Capitol Building in Washington, D.C., January 6, 2021 (5)
- Tokyo Olympics (1)
- Uvalde school shooting (1)