Portal:Tanzania/Selected anniversaries/December
- 9 December 1961: Tanganyika became an autonomous Commonwealth realm, with Julius Nyerere as Prime Minister.
- 9 December 1962: Tanganyika became a republic with Julius Nyerere as its first President.
- 14 December 1961: Tanganyika became a member of the United Nations.
- 16 December 1963: Zanzibar became a member of the United Nations.
- 19 December 1963: Zanzibar received independence from the United Kingdom, becoming a constitutional monarchy.
- 21 December 2005: Jakaya Kikwete was sworn in as the fourth President of Tanzania.