- European settlements (15th century - 17th century)
- American Colony of Liberia (1821-1847)
- Liberia declares independence (1847)
- United States recognizes Liberian independence (1862)
- Firestone starts the world's largest rubber planation (1926)
- Coup d'état (1980)
- First Liberian Civil War (1989-1997)
- Monrovia clashes (1998)
- Second Liberian Civil War (1999-2003)
- Ebola epidemic (2014-2015)
(This post includes any nation or civilization that occupied at least a portion of Liberia at some point. Unless specified otherwise, the dates correspond to when a nation or civilization existed, but do not necessarily correspond to occupation of Liberia.)