- Feb 7 Battle of Debre Tabor: Ras Ali Alula, Regent of the Emperor of Ethiopia defeats warlord Wube Haile Maryam of Semien.
- Aug 14 Second Seminole War declared over by Colonel Worth; Indians go on to be removed from Florida to Oklahoma
- Aug 29 Great Britain & China sign Treaty of Nanking, ends Opium war
- Jan 8 Viscount Pierre Cambronne, French General during the wars of the Revolution and the Napoleonic Era, dies at 71
- Jan 16 Thomas Freanby, Norwegian landscape painter, dies
- Feb 18 Thomas Hazlehurst, English soap and alkali manufacturer (b. 1779)
- Feb 21 Wojciech Zywny, composer, dies at 85
- Mar 6 Constanze Mozart, wife of W.A. Mozart (b. 1763)
Dr. William Brydon, a surgeon in the British Army during the First Anglo-Afghan War, becomes famous for (reputedly) being the sole survivor of an army of 16,500 when he reaches the safety of a garrison in Jalalabad.
On January 13, 1842