Yorubaland

The bold little ships even broke through the Gates of Hercules to the open ocean, coasting then northward to take the gold of Ireland and the tin of Cornwall, as well as southward, around the bulge of Senegal, to remote Yorubaland and the distant marts of ivory, gold, and slaves.

In some parts of precolonial Yorubaland, […] twins and their parents were either banished or ritually slaughtered.