There are over 3,000 different ethnic groups speaking more than 2,100 different languages in all of Africa. The people there practice a variety of religions, including Christianity, Islam, Judaism, Hinduism, and traditional religions specific to their ethnic group. The earliest Greek known to have made a map of the world was Anaximander. In 6th century BC, he drew a map of the then known world, assuming that the earth was cylindrical. The first Greek to draw a world map using the assumption of a spherical earth was Eratosthenes.
A. The water in the oceans only