Dahomey conquered Allada, the origin for the royal family according to oral tradition, and in 1727 he conquered Whydah. This increased size of the kingdom, particularly along the Atlantic coast, and increased power made Dahomey into a regional power. The result was near constant warfare with the main regional state, the Oyo Empire, from 1728 until 1740. The warfare with the Oyo empire resulted in Dahomey assuming a tributary status to the Oyo empire. Tegbesu, also spelled as Tegbessou, was King of Dahomey, in present-day Benin, from 1740 until 1774. Tegbesu was not the oldest son of King Agaja (1718–1740), but
History of the Kingdom of Dahomey slave traders and the conclusions were that the slave trade was a process of freeing the population from the highly militarized, very brutal, and despotic Kingdom of Dahomey. William Snelgrave and Archibald Dalzel wrote key histories and memoirs of Dahomey presenting the case for the slave trade to save the population from human sacrifice. Abolitionist historians, in contrast, argued that the brutality of the Dahomey state was the result of the slave trade itself. Dahomey was thus portrayed with a host of very negative stereotypes, with significant exaggeration, by European historians in the 18th and 19th century. With increasing debates