What is the color barrier?

Answer 1

The "color barrier" WAS an unofficial rule that no blacks could play for a Major League Baseball team. Several blacks played on minor league teams in the 1880s and one, Moses Walker, played on the Toledo Blue Stockings in 1884. In that year, Adrian "Cap" Anson refused to play his team against Toledo when Walker was on it. By 1890, official and unofficial rules against blacks were in effect in all MLB teams.

For the next fifty years, people wondered when the "color barrier" would be broken, in that a black Baseball player would be in MLB. Jackie Robinson was that player.