Book excerpt: As the slave trade entered its last, illegal phase in the 19th century, the town of Lagos on West Africa's Bight of Benin became one of the most important port cities north of the equator. Slavery and the Birth of an African City explores the reasons for Lagos's sudden rise to power. By linking the histories of international slave markets to those of the regional suppliers and slave traders, Kristin Mann shows how the African slave trade forever altered the destiny of the tiny kingdom of Lagos. This magisterial work uncovers the relationship between African slavery and the growth of one of Africa's most vibrant cities.