2016: Former U.S. Army soldier Micah Xavier Johnson shoots fourteen policemen during an anti-police protest in downtown Dallas, Texas, killing five of them. He is subsequently killed by a robot-delivered bomb.
2012: At least 172 people are killed in a flash flood in the Krasnodar Krai region of Russia.
2007: The first Live Earth benefit concert was held in 11 locations around the world.
2005: A series of four explosions occurs on London's transport system, killing 56 people, including four suicide bombers, and injuring over 700 others.
1978: The Solomon Islands becomes independent from the United Kingdom
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.
1959: Venus occults the star Regulus. This rare event is used to determine the diameter of Venus and the structure of the Venusian atmosphere.
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.
1946: Howard Hughes nearly dies when his XF-11 reconnaissance aircraft prototype crashes in a Beverly Hills neighborhood.
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.
1907: Florenz Ziegfeld, Jr. staged his first Follies on the roof of the New York Theater in New York City.