June 11: Trooping the Colour and the Queen's Official Birthday in the United Kingdom and several other Commonwealth countries (2011)
- 1345 – Inspecting a new prison without being escorted by his bodyguard, Alexios Apokaukos, megas doux of the Byzantine Navy, was lynched and killed by the prisoners.
- 1594 – In the Philippines, Philip II of Spain recognized the right to govern of the Principalía, the local nobles and chieftains who had converted to Roman Catholicism.
- 1847 – Afonso died at age two, leaving his father Pedro II, the last emperor of Brazil, without a male heir.
- 1937 – Marshal Mikhail Tukhachevsky (pictured) and several senior officers of the Soviet Red Army were convicted for belonging to a Trotskyist organization in a secret trial during the Great Purge.
- 1963 – The University of Alabama was desegregated as Governor of Alabama George Wallace stepped aside after defiantly blocking the entrance to an auditorium.
- 2008 – Canadian Prime Minister Stephen Harper apologised to the First Nations for past governments' policies of forced assimilation.