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.
Charles Henry Chuck Cooper (September 29, 1926 â February 5, 1984) was an American professional basketball player. He and two others, Nat Sweetwater Clifton and Earl Lloyd, became the first African-American players in the NBA in 1950. Cooper was also the first African American to be drafted by a National Basketball Association (NBA) team, as the second pick of the second round by the Boston Celtics.