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| YEAR | DATE | EVENT | KING | PRIME MINISTER |
| 1893 | 3 october | French Protectorate | ||
| 1895 | 15 december | Zakarinth | ||
| 1904 | 26 march | Sisavang Vong | ||
| 1941 | viceroy Prince Phetxarat Rattanavongga | |||
| 1945 | 7 april | Japan Occupation | ||
| 1945 | 27 august | Kingdom | Sisavang Vong (I) | Prince Phetxarat Rattanavongga |
| 1945 | 20 october | Prince Phaya Khammao Vilai | Prince Phaya Khammao Vilai | |
| 1946 | 23 april | French protectorate | Sisavang Vong (II) | Prince Kindavong |
| 1947 | 15 march | Prince Suvannarat | ||
| 1948 | 25 march | Prince Boun Oum (I) | ||
| 1950 | 24 february | Phoui Sananikone (I) | ||
| 1951 | 15 october | Prince Souvanna Phouma (I) |