on this day, 27 engagements
Battles fought on 1 May
27 engagements in the atlas were fought on 1 May between AD 811 and 1966: 19 battles, 5 sieges and 3 naval actions. Among them: Battle of Panipat (1526), Battle of Manila Bay (1898), Battle of Cresson (1187).
Engagements by date
| Date | Engagement | Place | War |
|---|---|---|---|
| 1 May AD 811 | Battle of Ray | Ray | Fourth Fitna |
| 1 May 1187 | Battle of Cresson | Nazareth | Crusades |
| 1 May 1282 | Battle of Forli | Forlì | |
| 1 May 1287 | Siege of Augusta | Augusta | War of the Sicilian Vespers |
| 1 May 1437 | Siege of Sion Castle | Sion Castle | Hussite Wars |
| 1 May 1444 | Massacre of Greifensee | Greifensee | Old Zürich War |
| 1 May 1455 | Battle of Arkinholm | Langholm | |
| 1 May 1526 | Battle of Panipat | Panipat | Mughal Empire |
| 1 May 1648 | Siege of Candia | Heraklion | Cretan War of 1645-1669 |
| 1 May 1676 | Siege of Philippsburg | Philippsburg | Franco-Dutch War |
| 1 May 1703 | Battle of Pułtusk | Pułtusk | Great Northern War |
| 1 May 1778 | Battle of Crooked Billet | Pennsylvania | American Revolutionary War |
| 1 May 1782 | Second Battle of Tucson | Tucson, Arizona | Apache–Mexico Wars |
| 1 May 1786 | Siege of Badami | Badami | |
| 1 May 1815 | Battle of Scapezzano | Senigallia | Neapolitan War |
| 1 May 1862 | Battle of Clark's House | West Virginia | American Civil War |
| 1 May 1863 | Battle of Port Gibson | Claiborne County, Mississippi | American Civil War |
| 1 May 1863 | Battle of Kobylanka | January Uprising | |
| 1 May 1865 | Battle of Anderson | Anderson, South Carolina | American Civil War |
| 1 May 1898 | Battle of Manila Bay | Manila Bay | Spanish–American War |
| 1 May 1915 | Battle off Noordhinder Bank | World War I | |
| 1 May 1915 | First Battle of Jaunde | World War I | |
| 1 May 1918 | Battle of Lahti | Lahti | German Invasion in the Finnish Civil War |
| 1 May 1940 | Battle of Zaoyang–Yichang | Zaoyang City | Second Sino-Japanese War |
| 1 May 1945 | Battle of Elephant Point | Pacific War | |
| 1 May 1965 | Battle of Dong-Yin | Dongyin Township | Chinese Civil War |
| 1 May 1966 | Battle of Mount Handrin | Rawanduz | First Kurdish–Iraqi War |
Only engagements recorded to the day are listed. Dates before 1582 are Julian, as recorded.