on this day, 28 engagements
Battles fought on 27 May
28 engagements in the atlas were fought on 27 May between 1234 and 1979: 25 battles, 2 sieges and 1 naval action. Among them: Second Battle of the Marne (1918), Third Battle of the Aisne (1918).
Engagements by date
| Date | Engagement | Place | War |
|---|---|---|---|
| 27 May 1234 | Battle of Altenesch | Lemwerder | Crusade against the Stedinger |
| 27 May 1523 | Conquest of Kalmar | Kalmar | Swedish War of Liberation |
| 27 May 1644 | Battle of Shanhai Pass | Shanhaiguan District | transition from Ming to Qing |
| 27 May 1652 | Siege of Étampes | Étampes | Franco-Spanish War |
| 27 May 1653 | Battle of Finta | Finta | Moldavian campaign of Tymofiy Khmelnytsky |
| 27 May 1694 | Battle of Torroella | Torroella de Montgrí | Nine Years' War |
| 27 May 1704 | Landing at Barcelona | Barcelona | War of the Spanish Succession in Catalonia |
| 27 May 1771 | Capture of Giurgiu (1771) | Giurgiu | Sixth Russo-Turkish War |
| 27 May 1794 | Battle of Lipniszki | Lipniški | |
| 27 May 1798 | Battle of Oulart Hill | Oulart | Irish Rebellion of 1798 |
| 27 May 1799 | Battle of Winterthur | Winterthur | War of the Second Coalition |
| 27 May 1813 | Battle of Hoyerswerda | Hoyerswerda | |
| 27 May 1815 | Battle of Cosse | Cossé-le-Vivien | French Revolution |
| 27 May 1857 | Battle of Escape Creek | Second Opium War | |
| 27 May 1858 | Battle of Shakopee | Shakopee, Minnesota | Dakota-Ojibwe War |
| 27 May 1859 | Battle of San Fermo | San Fermo della Battaglia | Second Italian War of Independence |
| 27 May 1860 | Siege of Palermo | Palermo | Expedition of the Thousand |
| 27 May 1862 | Battle of Hanover Court House | Hanover County, Virginia | American Civil War |
| 27 May 1864 | Battle of Pickett's Mill | Paulding County, Georgia | American Civil War |
| 27 May 1915 | Battle of Festubert | Festubert | World War I |
| 27 May 1918 | Second Battle of the Marne | Marne basin | World War I |
| 27 May 1918 | Third Battle of the Aisne | Aisne | World War I |
| 27 May 1941 | Last battle of the battleship Bismarck | Atlantic Ocean | World War II |
| 27 May 1941 | Battle of 42nd Street | World War II | |
| 27 May 1944 | Battle of Changsha | Hunan | Second Sino-Japanese War |
| 27 May 1944 | Battle of Biak | Biak Island | Pacific War |
| 27 May 1946 | Attack on Hrubieszów | Hrubieszów | World War II |
| 27 May 1979 | Battle of Bondo | Bondo |
Only engagements recorded to the day are listed. Dates before 1582 are Julian, as recorded.