| 77251 | July 7 | Event | 1944 – World War II: Largest Banzai charge of the Pacific War at the Battle of Saipan. |
| 77252 | July 7 | Event | 1946 – Mother Francesca S. Cabrini becomes the first American to be canonized. |
| 77253 | July 7 | Event | 1946 – Howard Hughes nearly dies when his XF-11 reconnaissance aircraft prototype crashes in a Beverly Hills neighborhood. |
| 77254 | July 7 | Event | 1947 – The Roswell incident, the (supposed) crash of an alien spaceship near Roswell in New Mexico. |
| 77255 | July 7 | Event | 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. |
| 77256 | July 7 | Event | 1953 – Ernesto "Che" Guevara sets out on a trip through Bolivia, Peru, Ecuador, Panama, Costa Rica, Nicaragua, Honduras, and El Salvador. |
| 77257 | July 7 | Event | 1954 – Elvis Presley makes his radio debut when WHBQ Memphis played his first recording for Sun Records, "That's All Right." |
| 77258 | July 7 | Event | 1956 – Fritz Moravec and two other Austrian mountaineers make the first ascent of Gasherbrum II (8,035 m). |
| 77259 | July 7 | Event | 1958 – U.S. President Dwight D. Eisenhower signs the Alaska Statehood Act into law. |
| 77260 | July 7 | Event | 1959 – Venus occults the star Regulus. This rare event is used to determine the diameter of Venus and the structure of the Venusian atmosphere. |
| 77261 | July 7 | Event | 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. |
| 77262 | July 7 | Event | 1978 – The Solomon Islands becomes independent from the United Kingdom |
| 77263 | July 7 | Event | 1980 – Institution of sharia in Iran. |
| 77264 | July 7 | Event | 1980 – During the Lebanese Civil War, 83 Tiger militants are killed during what will be known as the Safra massacre. |
| 77265 | July 7 | Event | 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. |
| 77266 | July 7 | Event | 1983 – Cold War: Samantha Smith, a U.S. schoolgirl, flies to the Soviet Union at the invitation of Secretary General Yuri Andropov. |
| 77267 | July 7 | Event | 1985 – Boris Becker becomes the youngest player ever to win Wimbledon at age 17 |
| 77268 | July 7 | Event | 1991 – Yugoslav Wars: The Brioni Agreement ends the ten-day independence war in Slovenia against the rest of the Socialist Federal Republic of Yugoslavia. |
| 77269 | July 7 | Event | 1997 – The Turkish Armed Forces withdraw from northern Iraq after assisting the Kurdistan Democratic Party in the Iraqi Kurdish Civil War. |
| 77270 | July 7 | Event | 2003 – NASA Opportunity rover, MER-B or Mars Exploration Rover–B, was launched into space aboard a Delta II rocket. |
| 77271 | July 7 | Event | 2005 – A series of four explosions occurs on London's transport system killing 56 people including four suicide bombers and injuring over 700 others. |
| 77272 | July 7 | Event | 2007 – The first Live Earth benefit concert was held in 11 locations around the world. |
| 77273 | July 7 | Event | 2012 – At least 172 people are killed in a flash flood in the Krasnodar Krai region of Russia. |
| 77274 | July 7 | Event | 2013 – A De Havilland Otter air taxi crashes in Soldotna, Alaska, killing ten people. |
| 77275 | July 7 | Birth | 1053 – Emperor Shirakawa of Japan (d. 1129) |
| 77276 | July 7 | Birth | 1119 – Emperor Sutoku of Japan (d. 1164) |
| 77277 | July 7 | Birth | 1207 – Elizabeth of Hungary (d. 1231) |
| 77278 | July 7 | Birth | 1528 – Archduchess Anna of Austria (d. 1590) |
| 77279 | July 7 | Birth | 1586 – Thomas Howard, 21st Earl of Arundel, English courtier and politician, Lord Lieutenant of Northumberland (d. 1646) |
| 77280 | July 7 | Birth | 1656 – Guru Har Krishan, Indian 8th Sikh Gurus (d. 1664) |