re: SI: Why Does MLB Still Allow Synchronized, Team-Sanctioned Racism in Atlanta?

The origin of "Braves" goes back 110 or so years, when the club was in Boston. The owner, at the time, was an entrenched member of the Tammany Hall organization, a quasi-political/mob group. Often, members of Tammany Hall were described as "Braves."

Good article from the Society of American Baseball Research (SABR)

Chicanery was the order of the day in baseball for the first number of decades.