Which day is observed as Africa day?

Which day is observed as Africa day?

A. 24 Oct
B. 14 Nov
C. 25 May
D. 25 Jan

Africa Day (formerly African Freedom Day and African Liberation Day) is the annual commemoration of the foundation of the Organisation of African Unity (OAU) (now known as the African Union) on 25 May 1963. It is celebrated in various countries on the African continent, as well as around the world.