| 99691 | September 2 | Event | 1960 – The first election of the Parliament of the Central Tibetan Administration, in history of Tibet. The Tibetan community observes this date as Democracy Day. |
| 99692 | September 2 | Event | 1963 – CBS Evening News becomes U.S. network television's first half-hour weeknight news broadcast, when the show is lengthened from 15 to 30 minutes. |
| 99693 | September 2 | Event | 1968 – Operation OAU begins during the Nigerian Civil War |
| 99694 | September 2 | Event | 1970 – NASA announces the cancellation of two Apollo missions to the Moon, Apollo 15 (the designation is re-used by a later mission), and Apollo 19. |
| 99695 | September 2 | Event | 1984 – Seven people are shot and killed and 12 wounded in the Milperra massacre, a shootout between the rival motorcycle gangs Bandidos and Comancheros in Sydney, Australia. |
| 99696 | September 2 | Event | 1987 – In Moscow, the trial begins for 19-year-old pilot Mathias Rust, who flew his Cessna airplane into Red Square in May. |
| 99697 | September 2 | Event | 1990 – Transnistria is unilaterally proclaimed a Soviet republic the Soviet president Mikhail Gorbachev declares the decision null and void. |
| 99698 | September 2 | Event | 1992 – An earthquake in Nicaragua kills at least 116 people. |
| 99699 | September 2 | Event | 1998 – Swissair Flight 111 crashes near Peggys Cove, Nova Scotia. All 229 people on board are killed. |
| 99700 | September 2 | Event | 1998 – The UN's International Criminal Tribunal for Rwanda finds Jean-Paul Akayesu, the former mayor of a small town in Rwanda, guilty of nine counts of genocide. |
| 99701 | September 2 | Event | 2013 – The Eastern span replacement of the San Francisco–Oakland Bay Bridge opened to traffic as the widest bridge in the world. |
| 99702 | September 2 | Birth | 1661 – Georg Böhm, German organist and composer (d. 1733) |
| 99703 | September 2 | Birth | 1675 – William Somervile, English poet and author (d. 1742) |
| 99704 | September 2 | Birth | 1753 – Marie Joséphine of Savoy (d. 1810) |
| 99705 | September 2 | Birth | 1778 – Louis Bonaparte, French-Dutch king (d. 1846) |
| 99706 | September 2 | Birth | 1805 – Esteban Echeverría, Argentinian poet and author (d. 1851) |
| 99707 | September 2 | Birth | 1810 – Lysander Button, American engineer (d. 1898) |
| 99708 | September 2 | Birth | 1810 – William Seymour Tyler, American historian and educator (d. 1897) |
| 99709 | September 2 | Birth | 1812 – William Fox, English-New Zealand lawyer and politician, 2nd Prime Minister of New Zealand (d. 1893) |
| 99710 | September 2 | Birth | 1820 – Lucretia Hale, American journalist and author (d. 1900) |
| 99711 | September 2 | Birth | 1830 – William P. Frye, American lawyer and politician (d. 1911) |
| 99712 | September 2 | Birth | 1838 – Liliuokalani of Hawaii (d. 1917) |
| 99713 | September 2 | Birth | 1839 – Henry George, American economist and author (d. 1897) |
| 99714 | September 2 | Birth | 1850 – Eugene Field American author and poet (d. 1895) |
| 99715 | September 2 | Birth | 1850 – Albert Spalding, American baseball player, manager, and businessman, co-founded the Spalding Sporting Goods Company (d. 1915) |
| 99716 | September 2 | Birth | 1850 – Woldemar Voigt, German physicist and academic (d. 1919) |
| 99717 | September 2 | Birth | 1852 – Paul Bourget, French author and critic (d. 1935) |
| 99718 | September 2 | Birth | 1853 – Wilhelm Ostwald, Latvian-German chemist and academic, Nobel Prize laureate (d. 1932) |
| 99719 | September 2 | Birth | 1854 – Hans Jæger, Norwegian philosopher and activist (d. 1910) |
| 99720 | September 2 | Birth | 1862 – Franjo Krežma, Croatian violinist and composer (d. 1881) |