1124 – Tyre falls to the Crusaders.
1456 – A retrial verdict acquits Joan of Arc of heresy 25 years after her death.
1520 – Spanish conquistadores defeat a larger Aztec army at the Battle of Otumba.
1534 – European colonization of the Americas: First known exchange between Europeans and natives of the Gulf of St. Lawrence in New Brunswick.
1543 – French troops invade Luxembourg.
1575 – Raid of the Redeswire, the last major battle between England and Scotland.
1585 – The Treaty of Nemours abolishes tolerance to Protestants in France.
1770 – The Battle of Larga between the Russian Empire and the Ottoman Empire takes place.
1777 – American Revolutionary War: American forces retreating from Fort Ticonderoga are defeated in the Battle of Hubbardton.
1798 – As a result of the XYZ Affair, the U.S. Congress rescinds the Treaty of Alliance with France sparking the "Quasi-War".
1807 – Napoleonic Wars: The Peace of Tilsit between France, Prussia and Russia ends the War of the Fourth Coalition.
1834 – In New York City, four nights of rioting against abolitionists began.
1846 – Mexican–American War: American troops occupy Monterey and Yerba Buena, thus beginning the U.S. acquisition of California.
1863 – United States begins its first military draft; exemptions cost $300.
1865 – American Civil War: Four conspirators in the assassination of President Abraham Lincoln are hanged.
1892 – Katipunan: The Revolutionary Philippine Brotherhood is established, contributing to the fall of the Spanish Empire in Asia.
1898 – U.S. President William McKinley signs the Newlands Resolution annexing Hawaii as a territory of the United States.
1907 – Florenz Ziegfeld, Jr. staged his first Follies on the roof of the New York Theater in New York City.
1911 – The United States, Great Britain, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
1915 – World War I: End of First Battle of the Isonzo.
1915 – An International Railway trolley with an extreme overload of 157 passengers crashes near Queenston, Ontario, killing 15.
1915 – Militia officer Henry Pedris executed by firing squad at Colombo, Ceylon - an act widely regarded as a miscarriage of justice by the British colonial authorities.
1916 – The New Zealand Labour Party was founded in Wellington.
1928 – Sliced bread is sold for the first time (on the inventor's 48th birthday) by the Chillicothe Baking Company of Chillicothe, Missouri.
1930 – Industrialist Henry J. Kaiser begins construction of Boulder Dam (now known as Hoover Dam).
1930 – Death of Sir Arthur Conan Doyle (1859-1930), creator of Sherlock Holmes.
1937 – Second Sino-Japanese War: Battle of Lugou Bridge: Japanese forces invade Beijing, China.
1941 – World War II: U.S. forces land in Iceland, taking over from an earlier British occupation.
1941 – World War II: Beirut is occupied by Free France and British troops.
1944 – World War II: Largest Banzai charge of the Pacific War at the Battle of Saipan.
1946 – Mother Francesca S. Cabrini becomes the first American to be canonized.
1946 – Howard Hughes nearly dies when his XF-11 reconnaissance aircraft prototype crashes in a Beverly Hills neighborhood.
1947 – The Roswell incident, the (supposed) crash of an alien spaceship near Roswell in New Mexico.
1952 – The ocean liner SS United States passes Bishop Rock on her maiden voyage, breaking the transatlantic speed record to become the fastest passenger ship in the world.
1953 – Ernesto "Che" Guevara sets out on a trip through Bolivia, Peru, Ecuador, Panama, Costa Rica, Nicaragua, Honduras, and El Salvador.
1954 – Elvis Presley makes his radio debut when WHBQ Memphis played his first recording for Sun Records, "That's All Right."
1956 – Fritz Moravec and two other Austrian mountaineers make the first ascent of Gasherbrum II (8,035 m).
1958 – U.S. President Dwight D. Eisenhower signs the Alaska Statehood Act into law.
1959 – Venus occults the star Regulus. This rare event is used to determine the diameter of Venus and the structure of the Venusian atmosphere.
1963 – Buddhist crisis: The police of Ngô Đình Nhu, brother and chief political adviser of President Ngô Đình Diệm, attacked a group of American journalists who were covering a protest.
1978 – The Solomon Islands becomes independent from the United Kingdom
1980 – Institution of sharia in Iran.
1980 – During the Lebanese Civil War, 83 Tiger militants are killed during what will be known as the Safra massacre.
1981 – U.S. President Ronald Reagan appoints Sandra Day O'Connor to become the first female member of the Supreme Court of the United States.
1983 – Cold War: Samantha Smith, a U.S. schoolgirl, flies to the Soviet Union at the invitation of Secretary General Yuri Andropov.
1985 – Boris Becker becomes the youngest player ever to win Wimbledon at age 17
1991 – Yugoslav Wars: The Brioni Agreement ends the ten-day independence war in Slovenia against the rest of the Socialist Federal Republic of Yugoslavia.
1997 – The Turkish Armed Forces withdraw from northern Iraq after assisting the Kurdistan Democratic Party in the Iraqi Kurdish Civil War.
2003 – NASA Opportunity rover, MER-B or Mars Exploration Rover–B, was launched into space aboard a Delta II rocket.
2005 – A series of four explosions occurs on London's transport system killing 56 people including four suicide bombers and injuring over 700 others.
2007 – The first Live Earth benefit concert was held in 11 locations around the world.
2012 – At least 172 people are killed in a flash flood in the Krasnodar Krai region of Russia.
2013 – A De Havilland Otter air taxi crashes in Soldotna, Alaska, killing ten people.
