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| YEAR | DATE | EVENT |
| 1873 | 2 october | Kingdom |
| 1889 | 7 november | Tripartite German-UK-U.S. protectorate |
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| YEAR | DATE | EVENT | GOVERNOR |
| 1900 | 1 march | German protectorate | Wilhelm Heinrich Solf |
| 1911 | 19 december | Erich Schultz-Ewerth |
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| YEAR | DATE | EVENT | COMMISSIONER |
| 1914 | 29 august | New Zealand occupation | Robert Logan |
| 1919 | 28 january | Robert Ward Tate | |
| 1920 | 17 december | New Zealand Trust administration | |
| 1923 | 16 march | Sir George Spafford Richardson | |
| 1928 | 5 may | Stephen Shepard Allen | |
| 1931 | 3 april | Herbert Ernest Hart | |
| 1935 | 25 july | Sir Alfred Clarke Turnbull | |
| 1946 | Francis William Voelcker |
|
| YEAR | DATE | EVENT | HIGH COMMISSIONER |
| 1948 | Francis William Voelcker |
| YEAR | DATE | EVENT | HEAD OF STATE | PRIME MINISTER | HIGH COMMISISONER |
| 1949 | 24 february | Guy Richardson Powles | |||
| 1959 | 1 october | New Zealand Self-governing Trust administration | Mata'afa Mulinu'u II | ||
| 1960 | John Bird Wright |