Where and when did the djembe first develop

The djembe drum is said to have been invented in the 12th Century by the Mandinke tribe in what is now Mali, in West Africa. It has been played by West Africans for generations forming an integral part of ritualistic life in Mali, Guinea, Senegal and other neighbouring West African countries.

Explanation:

based on the images pictured above, the major difference between the two cathedrals: the cathedral of notre dame and the amiens cathedral, is that the cathedral of notre dame emphasizes the horizontal lines while the amiens cathedral emphasizes the vertical lines.