on this day, 30 engagements
Battles fought on 20 May
30 engagements in the atlas were fought on 20 May between AD 685 and 1942: 20 battles, 6 sieges and 4 naval actions. Among them: Battle of Crete (1941), Demyansk Pocket (1942), Battle of Bautzen (1813), Sack of Magdeburg (1631).
Engagements by date
| Date | Engagement | Place | War |
|---|---|---|---|
| 20 May AD 685 | Battle of Dun Nechtain | Dunnichen | |
| 20 May 1217 | Battle of Lincoln | Lincoln Castle | First Barons' War |
| 20 May 1422 | Siege of Karlštejn | Karlštejn Castle | Hussite Wars |
| 20 May 1449 | Battle of Alfarrobeira | Alverca do Ribatejo | |
| 20 May 1521 | Battle of Pamplona | Pamplona | Spanish conquest of Iberian Navarre |
| 20 May 1522 | Siege of Genoa | Genoa | Italian War of 1521–1526 |
| 20 May 1562 | Battle of Kyōkōji | Q11499470 | |
| 20 May 1592 | Battle of Flores | Flores Island | Anglo-Spanish War |
| 20 May 1622 | Siege of Kandahar | Kandahar | Mughal–Safavid War |
| 20 May 1631 | Sack of Magdeburg | Magdeburg | Swedish intervention in the Thirty Years' War |
| 20 May 1635 | Battle of Les Avins | Les Avins | Thirty Years' War |
| 20 May 1667 | Battle of Nevis | Nevis | Second Anglo-Dutch War |
| 20 May 1756 | Battle of Minorca | Menorca | Seven Years' War |
| 20 May 1778 | Battle of Barren Hill | Pennsylvania | American Revolutionary War |
| 20 May 1783 | Siege of Mangalore | Mangaluru | |
| 20 May 1794 | Battle of Erquelinnes | Erquelinnes | War of the First Coalition |
| 20 May 1811 | Battle of Tamatave | Toamasina | War of the Fifth Coalition |
| 20 May 1813 | Battle of Bautzen | Bautzen | War of the Sixth Coalition |
| 20 May 1815 | Battle of Aizenay | Aizenay | 1815 War in Vendée and Chouannerie |
| 20 May 1826 | Siege of Varnakova | Monastery of Panagia Varnakovas | Greek War of Independence |
| 20 May 1854 | Battle of Nigoiti | Nigoiti | Crimean War |
| 20 May 1858 | Battle of Taku Forts | Taku Forts | Second Opium War |
| 20 May 1862 | Capture of Tucson | Tucson, Arizona | American Civil War |
| 20 May 1863 | Battle of Pogue's Run | Indianapolis, Kentucky | American Civil War |
| 20 May 1864 | Battle of Ware Bottom Church | Chesterfield County, Virginia | American Civil War |
| 20 May 1876 | Battle of Mount Okolchitsa | Okolchitsa (peak) | |
| 20 May 1941 | Battle of Crete | Crete | World War II in the Balkans |
| 20 May 1941 | Battle of Heraklion | Chania | World War II |
| 20 May 1941 | Battle of Rethymno | Rethymno | World War II in the Balkans |
| 20 May 1942 | Demyansk Pocket | Demyansk | Eastern Front |
Only engagements recorded to the day are listed. Dates before 1582 are Julian, as recorded.