sentences:  Although subsequent authors have disputed this number (Joseph E. Inikori, for example, argues for an estimate of about 15 million), his work remains the most commonly cited.He also wrote about how many Africans were taken and from what location, how many died during the middle passage, how many actually arrived in the Americas, and to what colonies/countries they were imported.Curtin was born in Philadelphia on May 22, 1922, and grew up in Webster Springs, West Virginia, the site of a coal and timber company owned by his family.