| 91531 | August 13 | Event | 2010 – The MV Sun Sea docks in CFB Esquimalt, British Columbia, Canada, carrying 492 Sri Lankan Tamils. |
| 91532 | August 13 | Event | 2014 – Three train cars derail and 11 people are injured after a landslide hits a mountain train in the Swiss Alps. |
| 91533 | August 13 | Event | 2015 – At least 76 people are killed and 212 others are wounded in a truck bombing in Baghdad, Iraq. |
| 91534 | August 13 | Birth | 1311 – Alfonso XI of Castile (d. 1350) |
| 91535 | August 13 | Birth | 1584 – Theophilus Howard, 2nd Earl of Suffolk, English admiral and politician, Lord Lieutenant of Cumberland (d. 1640) |
| 91536 | August 13 | Birth | 1625 – Rasmus Bartholin, Danish physician, mathematician, and physicist (d. 1698) |
| 91537 | August 13 | Birth | 1662 – Charles Seymour, 6th Duke of Somerset, English politician, Lord President of the Council (d. 1748) |
| 91538 | August 13 | Birth | 1666 – William Wotton, English linguist and scholar (d. 1727) |
| 91539 | August 13 | Birth | 1700 – Heinrich von Brühl, Polish-German politician (d. 1763) |
| 91540 | August 13 | Birth | 1717 – Louis François, Prince of Conti (d. 1776) |
| 91541 | August 13 | Birth | 1752 – Maria Carolina of Austria (d. 1814) |
| 91542 | August 13 | Birth | 1764 – Louis Baraguey d'Hilliers, French general (d. 1816) |
| 91543 | August 13 | Birth | 1790 – William Wentworth, Australian journalist, explorer, and politician (d. 1872) |
| 91544 | August 13 | Birth | 1792 – Adelaide of Saxe-Meiningen (d. 1849) |
| 91545 | August 13 | Birth | 1803 – Vladimir Odoyevsky, Russian philosopher and critic (d. 1869) |
| 91546 | August 13 | Birth | 1814 – Anders Jonas Ångström, Swedish physicist and astronomer (d. 1874) |
| 91547 | August 13 | Birth | 1818 – Lucy Stone, American activist (d. 1893) |
| 91548 | August 13 | Birth | 1819 – Sir George Stokes, 1st Baronet, Irish-English mathematician and physicist (d. 1903) |
| 91549 | August 13 | Birth | 1820 – George Grove, English musicologist and historian (d. 1900) |
| 91550 | August 13 | Birth | 1823 – Goldwin Smith, English-Canadian historian and journalist (d. 1910) |
| 91551 | August 13 | Birth | 1831 – Salomon Jadassohn, German pianist and composer (d. 1902) |
| 91552 | August 13 | Birth | 1841 – Johnny Mullagh, Australian cricketer (d. 1891) |
| 91553 | August 13 | Birth | 1842 – Charles Wells, English brewer, founded Charles Wells Ltd (d. 1914) |
| 91554 | August 13 | Birth | 1851 – Felix Adler, German-American religious leader and educator (d. 1933) |
| 91555 | August 13 | Birth | 1860 – Annie Oakley, American target shooter (d. 1926) |
| 91556 | August 13 | Birth | 1866 – Giovanni Agnelli, Italian businessman, founded Fiat S.p.A (d. 1945) |
| 91557 | August 13 | Birth | 1867 – George Luks, American painter and illustrator (d. 1933) |
| 91558 | August 13 | Birth | 1872 – Richard Willstätter, German-Swiss chemist and academic, Nobel Prize Laureate (d. 1942) |
| 91559 | August 13 | Birth | 1879 – John Ireland, English composer and educator (d. 1962) |
| 91560 | August 13 | Birth | 1884 – Harry Dean, English cricketer and coach (d. 1957) |