New York, New York - Major League Baseball formally adopted statistics from the racially segregated Negro Leagues into its official history on Wednesday, rewriting the record books at a stroke in a landmark move which confronts the sport's racist past.

MLB commissioner Rob Manfred said the decision gave long-overdue recognition to the achievement of African-American players in the league who deserve to be ranked alongside baseball's most iconic names.

"We are proud that the official historical record now includes the players of the Negro Leagues," Manfred said. "This initiative is focused on ensuring that future generations of fans have access to the statistics and milestones of all those who made the Negro Leagues possible."

Black players were barred from competing in the major leagues due to racism and segregation laws until Jackie Robinson famously broke baseball's color barrier by debuting for the Brooklyn Dodgers on April 15, 1947.

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Instead, African-American players plied their trade in the Negro Leagues, which ran from 1920 to 1948.

But while the segregated league produced many players who would go onto forge dazzling careers in Major League Baseball, their statistical achievements from that era were never recognized.

In 2020, following the death of George Floyd, MLB chiefs said it was time to finally grant "Major League" status to the Negro Leagues, in a move Manfred described as "correcting a longtime oversight" in the game's history.

A panel of Negro Leagues experts and historians subsequently pored over the record books to evaluate statistics from the era and determine how to incorporate them into MLB history.

Baseball historians welcomed Wednesday's announcement, with Negro Leagues Baseball Museum President Bob Kendrick hailing it as a "major milestone in baseball history."

"The Negro Leagues were a product of segregated America, created to give opportunity where opportunity did not exist," Negro Leagues expert and historian Larry Lester told MLB.com.

"As Bart Giamatti, former Commissioner of Baseball, once said, 'We must never lose sight of our history, insofar as it is ugly, never to repeat it, and insofar as it is glorious, to cherish it,'" Lester added.

Wednesday's announcement means that the likes of Negro Leagues stars such as Hall of Fame catcher Josh Gibson are now etched into baseball's official pantheon alongside iconic figures such as Babe Ruth, Willie Mays, and Hank Aaron.

Gibson played his entire career in the Negro Leagues between 1930 and 1946, accumulating statistical benchmarks which are now acknowledged as surpassing some of the most longstanding records in the sport.

Gibson is now baseball's all-time leader in batting average, his career average of .372 eclipsing Ty Cobb's record of .366 – a hitherto untouchable record which had stood since Cobb's retirement in 1928.

Gibson also takes over the records for single season batting average (.466), single season slugging percentage (.974), and single season OPS (on-base plus slugging).

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In several categories, Gibson replaces Babe Ruth, regarded by many as the greatest player in baseball history. Gibson now betters Ruth's records for career slugging percentage (.718) and OPS (1.177).

"When you hear Josh Gibson's name now, it's not just that he was the greatest player in the Negro Leagues but one of the greatest of all time," Gibson's great-grandson Sean Gibson told USA Today ahead of Wednesday's announcement.

"These aren't just Negro League stats. They're Major League Baseball stats."

The integrated record books will also boost some of the existing records of Black players who competed in the Negro Leagues before going on to participate in Major League Baseball following Robinson's trailblazing move to the Dodgers in 1947.

Hall of Fame pitcher Satchel Paige's wins total has increased to 124 from 28 after the inclusion of his Negro League stats, giving him the third best single season earned run average (ERA) in history at 1.01.