- Limba tribe (Pre-European era)
- Pedro de Sintra and Portugal arrive (1462)
- Atlantic slave trade (15th century - 19th century)
- Mane invasion (16th century)
- British Sierra Leone Colony (1808-1961)
- Hut Tax War (1898)
- Sierra Leone gains independence (1961)
- Military coup d'état (1967, 1968)
- Sierra Leone Civil War (1991-2002)
(This post includes any nation or civilization that occupied at least a portion of Sierra Leone at some point. Unless specified otherwise, the dates correspond to when a nation or civilization existed, but do not necessarily correspond to occupation of Sierra Leone.)
