Question: The African immigration to the United States was named "African" due to the significant quantity of what American immigrants?
Sentence (from "African immigration to the United States"): Between the Immigration and Nationality Act of 1965 and 2007, an estimated total of 0.8 to 0.9 million Africans immigrated to the United States, accounting for roughly 3.3% of all total U.S. immigrants during this period.
Relevant evidence: No