| 99091 | August 31 | Birth | 1987 – Petros Kravaritis, Greek footballer |
| 99092 | August 31 | Birth | 1987 – Ondřej Pavelec, Czech ice hockey player |
| 99093 | August 31 | Birth | 1988 – Ken Kallaste, Estonian footballer |
| 99094 | August 31 | Birth | 1989 – Dezmon Briscoe, American football player |
| 99095 | August 31 | Birth | 1990 – Tadeja Majerič, Slovenian tennis player |
| 99096 | August 31 | Birth | 1991 – António Félix da Costa, Portuguese race car driver |
| 99097 | August 31 | Birth | 1992 – Holly Earl, English actress |
| 99098 | August 31 | Birth | 1994 – Alex Harris, Scottish footballer |
| 99099 | August 31 | Birth | 1995 – Ceallach Spellman, English actor |
| 99100 | August 31 | Birth | 1998 – Saya Kawamoto, Japanese singer (AKB48) |
| 99101 | August 31 | Death | 577 – John Scholasticus, Byzantine patriarch and saint |
| 99102 | August 31 | Death | 651 – Aidan of Lindisfarne, Irish bishop and saint |
| 99103 | August 31 | Death | 731 – Ōtomo no Tabito, Japanese poet (b. 665) |
| 99104 | August 31 | Death | 1158 – Sancho III of Castile (b. 1134) |
| 99105 | August 31 | Death | 1234 – Emperor Go-Horikawa of Japan (b. 1212) |
| 99106 | August 31 | Death | 1372 – Ralph de Stafford, 1st Earl of Stafford, English soldier (b. 1301) |
| 99107 | August 31 | Death | 1422 – Henry V of England (b. 1386) |
| 99108 | August 31 | Death | 1645 – Francesco Bracciolini, Italian poet (b. 1566) |
| 99109 | August 31 | Death | 1654 – Ole Worm, Danish physician and historian (b. 1588) |
| 99110 | August 31 | Death | 1688 – John Bunyan, English preacher, theologian, and author (b. 1628) |
| 99111 | August 31 | Death | 1730 – Gottfried Finger, Czech-German viol player and composer (b. 1660) |
| 99112 | August 31 | Death | 1741 – Johann Gottlieb Heineccius, German academic and jurist (b. 1681) |
| 99113 | August 31 | Death | 1772 – William Borlase, English geologist and historian (b. 1695) |
| 99114 | August 31 | Death | 1795 – François-André Danican Philidor, French-English chess player and composer (b. 1726) |
| 99115 | August 31 | Death | 1799 – Nicolas-Henri Jardin, French architect and academic, designed the Bernstorff Palace and Marienlyst Castle (b. 1720) |
| 99116 | August 31 | Death | 1811 – Louis Antoine de Bougainville, French admiral and explorer (b. 1729) |
| 99117 | August 31 | Death | 1814 – Arthur Phillip, English admiral and politician, 1st Governor of New South Wales (b. 1738) |
| 99118 | August 31 | Death | 1817 – Sir John Duckworth, 1st Baronet, English admiral and politician, 39th Commodore Governor of Newfoundland (b. 1747) |
| 99119 | August 31 | Death | 1867 – Charles Baudelaire, French poet and critic (b. 1821) |
| 99120 | August 31 | Death | 1869 – Mary Ward, Irish astronomer and entomologist (b. 1827) |