Took long enough ... but Major League Baseball will finally recognize the Negro Leagues as a part of the Major Leagues.

MLB Commish Rob Manfred said the move will correct a "longtime oversight in the game’s history."

So, what does the distinction mean? A lot, actually.

Every single one of the 3,400 players who competed in the Negro Leagues from 1920 to 1948 will now be recognized by MLB as Major League ballplayers.

"Accordingly, the statistics and records of these players will become a part of Major League Baseball’s history," MLB announced.

It's a huge deal ... some of the greatest players of all-time were relegated to the Negro Leagues because of baseball's racist policy against Black players.

Of course, Jackie Robinson finally broke MLB's color barrier in 1947 ... and several players followed shortly after including Larry Doby, Roy Campanella, Satchel Paige, Willie Mays and more.

"All of us who love baseball have long known that the Negro Leagues produced many of our game’s best players, innovations and triumphs against a backdrop of injustice," Manfred said.

"We are now grateful to count the players of the Negro Leagues where they belong: as Major Leaguers within the official historical record."

MLB honored the 100th anniversary of the Negro Leagues on August 16, 2020 -- with all MLB players, managers, coaches and umpires wearing a symbolic Negro Leagues 100th Anniversary logo patch during that day’s games.