on this day, 20 engagements
Battles fought on 12 October
20 engagements in the atlas were fought on 12 October between AD 633 and 1940: 11 battles, 5 sieges and 4 naval actions.
Engagements by date
| Date | Engagement | Place | War |
|---|---|---|---|
| 12 October AD 633 | Battle of Hatfield Chase | Doncaster | |
| 12 October 1420 | Battle of Małym Borem | Malý Bor | Hussite Wars |
| 12 October 1429 | Siege of Bautzen | Bautzen | |
| 12 October 1459 | Battle of Ludford Bridge | Ludlow | Wars of the Roses |
| 12 October 1584 | Siege of Suemori | Suemori Castle | |
| 12 October 1625 | Battle of Listenhoff | Polish–Swedish War of 1621–25 | |
| 12 October 1672 | Battle of Woerden | Woerden | Franco-Dutch War |
| 12 October 1748 | Battle of Havana | Havana | War of Jenkins' Ear |
| 12 October 1758 | Battle of Fort Ligonier | Fort Ligonier, Pennsylvania | Seven Years' War |
| 12 October 1793 | Second Battle of Noirmoutier | Isle of Noirmoutier | War in the Vendée |
| 12 October 1798 | Battle of Tory Island | Tory Island | French Revolutionary Wars |
| 12 October 1813 | Siege of Trieste | Trieste | |
| 12 October 1825 | Battle of Sarandí | Sarandí creek | Cisplatine War |
| 12 October 1835 | Siege of Béxar | San Antonio, Texas | Texas Revolution |
| 12 October 1861 | Battle of the Head of Passes | Head of Passes, Louisiana | American Civil War |
| 12 October 1895 | Zeitun Rebellion | Süleymanlı | persecution of Assyrians |
| 12 October 1898 | Battle of Virden | Illinois | |
| 12 October 1914 | Battle of Messines | Bikschote | World War I |
| 12 October 1917 | First Battle of Passchendaele | Passendale | World War I |
| 12 October 1940 | Battle of Cape Passero | Mediterranean Sea | World War II |
Only engagements recorded to the day are listed. Dates before 1582 are Julian, as recorded.