Births on February 6

Jan Werich, Czech actor and playwright (d. 1980)

Jan Werich (Czech: [ˈjan ˈvɛrɪx]; 6 February 1905 – 31 October 1980) was a Czech actor, playwright and writer.

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.