| 95611 | August 23 | Event | 1521 – Christian II of Denmark is deposed as king of Sweden and Gustav Vasa is elected regent. |
| 95612 | August 23 | Event | 1541 – French explorer Jacques Cartier lands near Quebec City in his third voyage to Canada. |
| 95613 | August 23 | Event | 1572 – French Wars of Religion Mob violence against Huguenots in Paris results in the St. Bartholomew's Day massacre. |
| 95614 | August 23 | Event | 1592 – Japanese invasions of Korea: The Yeongwon Castle is besieged by the Japanese Fourth Division led by Itō Suketaka. |
| 95615 | August 23 | Event | 1595 – Long Turkish War: Wallachian prince Michael the Brave confronts the Ottoman army in the Battle of Călugăreni and achieves a tactical victory. |
| 95616 | August 23 | Event | 1600 – Battle of Gifu Castle: The eastern forces of Tokugawa Ieyasu defeat the western Japanese clans loyal to Toyotomi Hideyori, leading to the destruction of Gifu Castle and serving as a prelude to the Battle of Sekigahara. |
| 95617 | August 23 | Event | 1614 – Fettmilch Uprising: Jews are expelled from Frankfurt, Holy Roman Empire, following the plundering of the Judengasse. |
| 95618 | August 23 | Event | 1614 – The University of Groningen is established in the Dutch Republic. |
| 95619 | August 23 | Event | 1628 – George Villiers, the first Duke of Buckingham, is assassinated by John Felton. |
| 95620 | August 23 | Event | 1650 – Colonel George Monck of the English Army forms Monck's Regiment of Foot, which will later become the Coldstream Guards. |
| 95621 | August 23 | Event | 1655 – Battle of Sobota: The Swedish Empire led by Charles X Gustav defeats the Polish–Lithuanian Commonwealth. |
| 95622 | August 23 | Event | 1703 – Edirne event: Sultan Mustafa II of the Ottoman Empire is dethroned. |
| 95623 | August 23 | Event | 1765 – Beginning of Burmese–Siamese War. |
| 95624 | August 23 | Event | 1775 – American Revolutionary War: King George III delivers his Proclamation of Rebellion to the Court of St James's stating that the American colonies have proceeded to a state of open and avowed rebellion. |
| 95625 | August 23 | Event | 1784 – Western North Carolina (now eastern Tennessee) declares itself an independent state under the name of Franklin it is not accepted into the United States, and only lasts for four years. |
| 95626 | August 23 | Event | 1799 – Napoleon I of France leaves Egypt for France en route to seizing power. |
| 95627 | August 23 | Event | 1813 – At the Battle of Großbeeren, the Prussians under Von Bülow repulse the French army. |
| 95628 | August 23 | Event | 1831 – Nat Turner's slave rebellion is suppressed. |
| 95629 | August 23 | Event | 1839 – The United Kingdom captures Hong Kong as a base as it prepares for war with Qing China. The ensuing 3-year conflict will later be known as the First Opium War. |
| 95630 | August 23 | Event | 1858 – The Round Oak rail accident occurs in Brierley Hill in the Black Country, England. It is 'Arguably the worst disaster ever to occur on British railways'. |
| 95631 | August 23 | Event | 1864 – The Union Navy captures Fort Morgan, Alabama, thus breaking Confederate dominance of all ports on the Gulf of Mexico except Galveston, Texas. |
| 95632 | August 23 | Event | 1866 – Austro-Prussian War ends with the Treaty of Prague. |
| 95633 | August 23 | Event | 1873 – Albert Bridge in Chelsea, London opens. |
| 95634 | August 23 | Event | 1896 – Officially recognised date of the Cry of Pugad Lawin, the start of the Philippine Revolution is made in Pugad Lawin (Quezon City), in the province of Manila (actual date and location is disputed). |
| 95635 | August 23 | Event | 1898 – The Southern Cross Expedition, the first British venture of the Heroic Age of Antarctic Exploration, departs from London. |
| 95636 | August 23 | Event | 1901 – 600 American school teachers, Thomasites, arrived in Manila on the USAT Thomas. |
| 95637 | August 23 | Event | 1904 – The automobile tire chain is patented. |
| 95638 | August 23 | Event | 1914 – World War I: Japan declares war on Germany and bombs Qingdao, China. |
| 95639 | August 23 | Event | 1914 – World War I: Battle of Mons: The British Army begins withdrawal. |
| 95640 | August 23 | Event | 1921 – British airship R-38 experiences structural failure over Hull in England and crashes in the Humber estuary. Of her 49 British and American training crew, only four survive. |