Complex sentence: Based in the DNA analysis, during the American colonial period at least some African slaves arrived to the modern United States hailed from modern Gabon, being imported slaves of ethnics such as the Fang, Benga, Benza and Kota people.
Split into simpler sentences: Based in the DNA analysis, during the American colonial period at least some African slaves arrived to the modern United States. During the colonial period, the day-present United Stares received at least, some slaves from of modern Gabon, being imported slaves of ethnics such as the Fang, Benga, Benza and Kota people.