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.
Modeled after Life but intended for an emerging black middle class, the magazine is an instant success. This same year, Nat King Cole becomes the first black with his own network radio show. Cole is also the first black with his own network TV show, The Nat King Cole Show (1956). Jackie Robinson plays baseball for the Brooklyn Dodgers, the first black in the major leagues in the modern era. In 1962 he was the first black inducted into the National Baseball Hall of Fame.