August 31, 1909 – A. J. Reach Co. patented the cork-centered baseball. Previously the balls had a hard rubber core to them. It sounds harmless enough, after all the core is buried under a leather cover and inner bindings. The stats tell a different story though.
According to ThisDayinBaseball.com the number of .300 hitters jumped from eight in 1910 to 27 a season later in the American League. The league’s earned run average will go from 2.53 to 3.34. We have heard about the corked bat, but the corked ball may have had an even bigger impact in the game. The modern ball has a core composed of cork and rubber.
To find more great daily sports history make sure to check out the Sports Jersey Dispatch and Pigskin Dispatch.
More From Sports History Network

Sports History On This Day: August 1
August 1, 1918 – Back in the day MLB teams knew how to play defense. The Pittsburgh

Norman Barry: The High School Coach Who Won an NFL Title!
Since the Arizona Cardinals began in 1899, the team has captured just two NFL

Sports History On This Day: July 31
July 31, 1932 – The grand opening of Cleveland’s Municipal Stadium took place. The Cleveland

Sports History On This Day: July 30
July 30, 1874 – The very first baseball teams to play outside of the US

Sports History On This Day: July 29
July 29, 1751 – It was a truly historic sports day in the world of

Sports History On This Day: July 28
July 28, 1933 – The NFL took a huge step in growth on this day

A Day in the Life of a Retired Indy Car Mechanic
In retirement, do we always seek the refuge of our favorite golf course or

Sports History On This Day: July 27
July 27, 1959 – The game of baseball in New York City had somewhat of