|
|
|
| YEAR | DATE | EVENT | GOVERNOR |
| 1885 | 17 october | German protectorate | Karl Peters |
| 1888 | 8 february | Herrmann von Wissmann (I) | |
| 1891 | 14 february | Julius Freiherr von Soden | |
| 1893 | 15 september | Friedrich Radbod Freiher von Schele |
|
| YEAR | DATE | EVENT | GOVERNOR |
| 1895 | 26 april | Herrmann von Wissmann (II) | |
| 1896 | 3 december | col. Eduard von Liebert | |
| 1901 | 12 march | Gustav Adolf Graf von Götzen | |
| 1906 | 15 april | Georg Albrecht Freiherr von Rechenberg | |
| 1912 | 22 april | Albert Heinrich Schnee |
|
| YEAR | DATE | EVENT | GENERAL GOVERNOR |
| 1916 | 9 october | UK Occupation | Sir Horace Archer Byatt |
| 1922 | 20 july | UK Trust administration | |
| 1924 | John Scott | ||
| 1925 | 5 march | Donald Charles Cameron | |
| 1931 | january | George Stewart Symes | |
| 1934 | 19 february | Sir Harold Alfred MacMichael | |
| 1938 | 8 july | Sir Mark Aitchinson Young | |
| 1941 | 19 june | Sir Wilfrid Edward Francis Jackson | |
| 1945 | 28 april | Sir William Denis Battershill | |
| 1949 | 18 june | Sir Edward Francis Twining | |
| 1958 | 15 july | Sir Richard Gordon Turnbull |
| YEAR | DATE | EVENT | PRESIDENT/KING | PRIME MINISTER | GENERAL GOVERNOR |
| 1961 | 1 may | UK self-governing trust administration | Julius Kambarage Nyerere | Sir Richard Gordon Turnbull | |
| 1961 | 9 december | Independent into Commonwealth | queen Elisabeth II | Julius K. Nyerere | Sir Richard Gordon Turnbull |
| 1962 | 22 january | Rashid Kawawa | |||
| 1962 | 9 december | Republic | Julius Kambarage Nyerere | - | |
| 1964 | 27 april | Union with Zanzibar |