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| 1724–27 |
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| Dahomey ruler Agaja embarked on conquest of smaller and older polities in area of Abomey, greatly increasing the power of the state. | 1 |
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| 1730 |
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| Oyo attacked Dahomey in punitive action against Dahomey's aggressiveness toward Oyo's western flank. Dahomey was forced into nominal tribute role to Oyo. | 2 |
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| c. 1730 |
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| First reported harvest of peanuts in the Gambia. | 3 |
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| 1731–42 |
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| Opoku Ware, the Asantehene, emerged as the ruler and consolidated Asante state. | 4 |
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| 1732–34 |
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| Following Oyo campaign against Dahomey, smaller polities sought to free themselves from Dahomey and rebelled against it. Dahomey troops carried out severe reprisals, asserting Dahomey's regional hegemony and feeding the slave trade. | 5 |
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| 1737 |
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| War between Asante and Wassaw. | 6 |
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| 1747 |
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| Asante expansionism toward the coast; Asante overran Accra and besieged Christianbourg Castle. | 7 |
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| 1749–53 |
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| Michel Andanson explored the Senegambian coast. | 8 |
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| 1751–56 |
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| Thomas Thomson, Anglican chaplain to Cape Coast Castle, evangelized among the Fante. | 9 |
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| 1756–83 |
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| Dutch encouraged cotton production at Axim and Shama. | 10 |
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| 1763 |
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| Catholic mission established at Gorée. | 11 |
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| 1763–79 |
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| British seized Senegambia and administered it as a crown colony. | 12 |
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