Question: The Philadelphia Stars were part of a United States professional baseball league that was comprised of teams predominantly made up of African Americans, but that also included who?
Sentence (from "Philadelphia Stars (baseball)"): The Stars were an independent ball club in 1933, a member of the Negro National League from 1934 until the League's collapse following the 1948 season, and affiliated with the Negro American League from 1949 to 1952.
Relevant evidence: No