Battles on 21 October
24 battles fought (or begun) on 21 October, from 1600 to 2016, in date order. Dates are from Wikidata and are shown only for battles from 1600 onwards with a single exact date. Dates recorded in the Julian (Old Style) calendar are listed under their Julian day and marked.
Which battles happened on 21 October?
The best-known battles on this day (by number of Wikipedia language editions) are Battle of Trafalgar (1805), Battle of Sekigahara (1600), Battle of the Downs (1639).
- Battle of Sekigahara 21 October 1600Japan · Sekigahara Campaign
- Battle of the Downs 21 October 1639At sea · Eighty Years' War
- Battle at The Lizard 21 October 1707England · War of the Spanish Succession
- Battle of Cap-Français 21 October 1757Haiti · Seven Years' War
- Siege of Negapatam 21 October 1781 – 11 November 1781India · Fourth Anglo-Dutch War
- Battle of Trafalgar 21 October 1805At sea · Trafalgar Campaign
- Battle of Ball's Bluff 21 October 1861United States · American Civil War
- Battle of Camp Wildcat 21 October 1861United States · American Civil War
- Engagement at Fredericktown 21 October 1861United States · Trans-Mississippi theater of the American Civil War
- Battle of Cherokee Station 21 October 1863United States · American Civil War
- Battle of Little Blue River 21 October 1864United States · American Civil War
- Battle of Buzenval (1870) 21 October 1870France · Franco-Prussian War
- Battle of Cedar Creek (1876) 21 October 1876United States · Great Sioux War of 1876
- Battle of Elandslaagte 21 October 1899South Africa · Second Boer War
- Battle of Kardzhali 21 October 1912Bulgaria · First Balkan War
- Attack on Convoy BN 7 21 October 1940Eritrea · World War II
- Battle of Carei 21 October 1944Romania · World War II
- Battles of Bircza 21 October 1945 – 7 January 1946Poland · Polish–Ukrainian conflict
- Battle of Beersheba (1948) 21 October 1948Israel · 1948 Arab–Israeli War
- Battle of Yongyu 21 October 1950 – 22 October 1950North Korea · Korean War
- Battle of Walong 21 October 1962 – 16 November 1962India · Sino-Indian War
- Battle of Alagarno 21 October 2013Nigeria
- Battle of Sadad 21 October 2013 – 28 October 2013Syria · Syrian Civil War
- Battle of Kirkuk (2016) 21 October 2016 – 24 October 2016Iraq · Iraqi insurgency