The story
The BOAD was created on 14 November 1973 by member states of the West African Monetary Union (WAMU). The original charter focused on development of member economies towards balanced development and to prepare economies for future West African economic integration. In 1994, it became the development arm of the West African Economic and Monetary Union (WAEMU/UEMOA).
From Wikipedia’s article on West African Development Bank, shared under CC BY-SA 4.0.5
