1887-1887 (1 season)
The National Colored Base Ball League was the first organization of a professional Negro league in 1887. The Washington Capital Citys and the Cincinnati Browns both joined the National Colored Base Ball League on May 6, 1887, just as the 1887 season was beginning. Cincinnati and Washington D.C. joined the original league six teams: Baltimore Lord Baltimores, Boston Resolutes, Louisville Falls Citys, New York Gorhams, Philadelphia Pythians and Pittsburgh Keystones. The Washington Capital Citys franchise quickly folded before playing any official games. The National Colored Base Ball League folded permanently on May 23, 1887.