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.
In 1947 Jackie Robinson broke the color barrier in baseball and was  the first African American to play major league baseball. A member  of the Brooklyn Dodgers, Robinson waâ¦s the first African American to  break a record in the Negro league and was the best African  American baseball player in history. bob corly.