Births on November 23

K. Alvapillai, Sri Lankan civil servant (d. 1979)

Kovindapillai Alvapillai, OBE (23 November 1905 – 17 February 1979) was a leading Ceylon Tamil civil servant.

27 May

Battle of Tsushima
Russo-Japanese War: The Battle of Tsushima begins.
28 May

Battle of Tsushima
Russo-Japanese War: The Battle of Tsushima ends with the destruction of the Russian Baltic Fleet by Admiral Tōgō Heihachirō and the Imperial Japanese Navy.
26 Oct

Norway
Sweden accepts the independence of Norway.
30 Oct

Nicholas II of Russia
Czar Nicholas II of Russia issues the October Manifesto, granting the Russian peoples basic civil liberties and the right to form a duma. This was October 17 in the Julian calendar.
21 Nov

Mass-energy equivalence
Albert Einstein's paper that leads to the mass-energy equivalence formula, E = mc², is published in the journal Annalen der Physik.