PolitikHukum & traktatBudayaAntariksa
- 1964Kemerdekaan26 April 1964 (Tanganyika united with Zanzibar to form the United Republic of Tanganyika and Zanzibar); 29 October 1964 (renamed United Republic of Tanzania); notable earlier dates: 9 December 1961 (Tanganyika became independent from UK-administered UN trusteeship); 10 December 1963 (Zanzibar became independent from UK)CIA World Factbook
- 1976Meratifikasi ICCPR (hak sipil & politik)UN Treaty Collection
- 1979Situs Warisan Dunia UNESCO pertamaNgorongoro Conservation AreaUNESCO World Heritage
- 1984Meratifikasi Konvensi GenosidaUN Treaty Collection
- 1985Meratifikasi CEDAW (hak perempuan)UN Treaty Collection
- 1991Meratifikasi Konvensi Hak AnakUN Treaty Collection
- 2002Bergabung dengan ICC (Statuta Roma)UN Treaty Collection
- 2006Penetapan Warisan Dunia terakhirKondoa Rock-Art SitesUNESCO World Heritage
- 2018Meratifikasi Perjanjian Iklim ParisUN Treaty Collection
- 2025Pemilu legislatif terakhir2025-10-29IPU Parline
