The ultimate goal of all expiration launch by the europeans from the 14th century onward was

 finding a sea link between Europe and the wealthy civilizations of Asia. 

It developed as a reaction to the impact of european colonialism in africa on peoples of african descent. in the  mid-20th century, activists in africa adopted pan-africanism as a rallying cry for independence from colonial rule. some african pan-africanists sought to unite the continent as one independenthope it was useful