Let's take a closer look at the world of sports. It's interesting to note that baseball holds the distinction of being the first sport to have leagues. It grew in popularity shortly after the Civil War and teams were essentially integrated. It appears the focus was on having fun. But by 1868, something changed the landscape and Negroes were not allowed to play with the amateur league teams; integration was no longer allowed.
There was some fizzle and the amateur leagues gave way to professional leagues that sustained the no integrated teams bar. So Negro leagues were formed in 1895. Say the names, "Rube Foster, known as the father of black baseball, founded the Negro National League. In 1923, Ed Bolden formed the Eastern Colored League." Financial difficulties caused efforts to sustain the a major stumbling block. Says U.S. History regarding the two aspects of the demise of the Black baseball leagues:
The legacy the Negro Leagues is one of courage, perseverance, and strength to overcome the oppressive racial segregation and volitile [sic] times of the era. Conversely, by losing its stars to the Major Leagues, it was a sweet-and-sour proposition — the leagues had to fold, but integration of the white baseball establishment was a major step toward gaining equality for the black populace of America.
ThoughtCo. offers a particularly good timeline of the history of baseball leagues and attributes the division to Jim Crow laws.
It was Jackie Robinson who essentially broke the color barrier when he signed with Brooklyn Dodgers. But John Donaldson is another name that needs to be remembered and celebrated. Efforts are afoot to have him included in the Baseball Hall of Fame because of his outstanding skill.
But what about basketball! Well, of all places, Uncyclopedia has a very colorful account of how basketball was born and moves into how it became a sport that eventually included Blacks via the Negro Basketball Association. Notice the names of the players and positions. Meanwhile, Wikipedia explains the Black Fives and what that means
Football is yet another sport (and league) worth discovering the who and the when. BleacherReport tells us it was 1946 when the first five Negroes broke the color barrier in football. Can you name those players? So, who is Charles Follis (1902-06) and why is he associated with Paul Robeson (1920-26)? Because both of them are attributed with being the first Black football players.
There are still other sports firsts for tennis, track & field, gymnastics, winter sports, golf. Perhaps those can be given more attention when their seasons arrive.