Final answer:
Liberia was able to remain independent from European imperialism while most other African countries were colonized.
Step-by-step explanation:
Liberia differed from most other African countries in its experience with European imperialism because it was able to remain independent. While European colonial powers had claimed most of Africa by 1900, Liberia, along with the Kingdom of Ethiopia, remained independent. This was due to the fact that Liberia was established as a home for freed slaves and was not colonized by Europeans. The Berlin Conference of 1884, which divided Africa among the European powers, did not apply to Liberia, allowing it to maintain its independence.