1. Castilo-Portuguese Rivalry in Senegambia, 1454–56 2. Portuguese Progress, Especially after the Grant to Fernao Gomes, 1456–75 3. The Challenge of Castile, 1475–80 4. The Consolidation of the Portuguese Monopoly, 1480–1530 5. Trade and Fortification in West Africa, 1480–1578 6. French Intervention in West Africa, 1530–53 7. Triple Rivalry in West Africa, 1553–59 8. Monopoly on the Wane, 1559–78
