ancillary data are often very diverse, may include maps, vegetation phenologies, and many kinds of information about human activities in the general area. human experts bring all these element s, plus their acquired skills and knowledge of related disciplines ...
Fritz Pollard and Bobby Marshall were the first black players in what is now the NFL in 1920. Pollard became the first (and until 1989, only) black coach in 1921; during the early-to-mid-1920s, the league used player-coaches and did not have separate coaching staffs.
On October 31, 1950, Earl Lloyd, a member of the Washington Capitols, became the first African-American to play in an NBA game when he entered a game against the Rochester Royals. Chuck Cooper was the first African-American to be drafted out of college by an NBA team, the Boston Celtics. Chuck played 66 games in his first season with the Celtics. He averaged 9.5 points and 8.5 rebounds. He would have been the first African-American to play in the NBA, but Earl Lloyd played one day before him because of the schedules.