| 77916 | July 9 | Event | 1864 – Thomas Briggs, was murdered, the first killing on a British train |
| 77917 | July 9 | Event | 1868 – The 14th Amendment to the United States Constitution is ratified guaranteeing African Americans full citizenship and all persons in the United States due process of law. |
| 77918 | July 9 | Event | 1875 – Outbreak of the Herzegovina Uprising against Ottoman rule, which would last until 1878 and have far-reaching implications throughout the Balkans. |
| 77919 | July 9 | Event | 1877 – The inaugural Wimbledon Championships begins. |
| 77920 | July 9 | Event | 1896 – William Jennings Bryan delivers his Cross of Gold speech advocating bimetallism at the 1896 Democratic National Convention in Chicago. |
| 77921 | July 9 | Event | 1900 – Queen Victoria of the United Kingdom gives Royal Assent to an Act creating Australia thus uniting separate colonies on the continent under one federal government. |
| 77922 | July 9 | Event | 1900 – Boxer Rebellion: The Governor of Shanxi province in North China orders the execution of 45 foreign Christian missionaries and local church members, including children. |
| 77923 | July 9 | Event | 1903 – Future Soviet leader Joseph Stalin is exiled to Siberia for three years. |
| 77924 | July 9 | Event | 1918 – Great Train Wreck of 1918: In Nashville, Tennessee, an inbound local train collides with an outbound express killing 101 and injuring 171 people, making it the deadliest rail accident in United States history. |
| 77925 | July 9 | Event | 1922 – Johnny Weissmuller swims the 100 meters freestyle in 58.6 seconds breaking the world swimming record and the 'minute barrier'. |
| 77926 | July 9 | Event | 1932 – The state of São Paulo revolts against the Brazilian Federal Government, starting the Constitutionalist Revolution. |
| 77927 | July 9 | Event | 1937 – The silent film archives of Fox Film Corporation are destroyed by the 1937 Fox vault fire. |
| 77928 | July 9 | Event | 1943 – World War II: Operation Husky: Allied forces perform an amphibious invasion of Sicily. |
| 77929 | July 9 | Event | 1944 – World War II: Battle of Normandy: British and Canadian forces capture Caen, France. |
| 77930 | July 9 | Event | 1944 – World War II: Battle of Saipan: American forces take Saipan in the Mariana Islands. |
| 77931 | July 9 | Event | 1944 – World War II: Battle of Tali-Ihantala: Finland wins the Battle of Tali-Ihantala, the largest battle ever fought in northern Europe. The Red Army withdraws its troops from Ihantala and digs into a defensive position, thus ending the Vyborg–Petrozavo |
| 77932 | July 9 | Event | 1955 – The Russell–Einstein Manifesto is released by Bertrand Russell in London, England, United Kingdom. |
| 77933 | July 9 | Event | 1958 – Lituya Bay is hit by a megatsunami. The wave is recorded at 30 to 91 meters high, the largest in recorded history. |
| 77934 | July 9 | Event | 1961 – Turkish voters approve the Turkish Constitution of 1961 in a referendum. |
| 77935 | July 9 | Event | 1962 – The Starfish Prime high-altitude nuclear test is conducted by the United States. |
| 77936 | July 9 | Event | 1962 – Andy Warhol's Campbell's Soup Cans exhibition opens at the Ferus Gallery in Los Angeles. |
| 77937 | July 9 | Event | 1972 – The Troubles: In Belfast, British Army snipers shoot five civilians dead in the Springhill Massacre. |
| 77938 | July 9 | Event | 1979 – A car bomb destroys a Renault motor car owned by the famed "Nazi hunters" Serge and Beate Klarsfeld at their home in France. A note purportedly from ODESSA claims responsibility. |
| 77939 | July 9 | Event | 1981 – Donkey Kong, a video game created by Nintendo, is released. The game marks the debut of Nintendo's future mascot, Mario. |
| 77940 | July 9 | Event | 1982 – Pan Am Flight 759 crashes in Kenner, Louisiana killing all 145 people on board and eight others on the ground. |
| 77911 | July 9 | Event | 1816 – Argentina declares independence from Spain. |
| 77912 | July 9 | Event | 1821 – Four hundred seventy prominent Cypriots including Archbishop Kyprianos are executed in response to Cypriot aid to the Greek War of Independence |
| 77913 | July 9 | Event | 1850 – U.S. President Zachary Taylor dies Vice President Millard Fillmore, becomes President upon Taylor's death. |
| 77914 | July 9 | Event | 1850 – Persian prophet Báb is executed in Tabriz, Persia. |
| 77915 | July 9 | Event | 1863 – American Civil War: The Siege of Port Hudson ends. |