Hank Aaron has been in the news lately, and rightfully so, but there is another story....

that merits telling:

When Indianapolis Clowns sold Hank Aaron's contract to the The Braves, Aaron's replacement was a woman. Toni Stone took Aaron's place on the Clowns' roster, breaking the gender barrier in professional baseball.



https://en.wikipedia.org/wiki/Toni_Stone

Unfortunately a feat not repeated for 63 years:

In June 2016, the Stompers announced that two female baseball players would join their roster starting in July. Upon joining the team, the two players, outfielder-pitcher Kelsie Whitmore and infielder Stacy Piagno, made the Sonoma Stompers the first coed professional baseball team since the 1950s.
League: Pacific Association of Professional Baseball Clubs
Location: Sonoma, California
League championships: 2016