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How far apart did Alexander Cartwright set the baseball bases?

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Barry Bonds of the San Francisco Giants swings his bat after hitting his record-breaking 756th home run, with the catcher, umpire, and a cheering crowd behind him at AT&T Park. — History of baseball Giants legend Barry Bonds hitting his record-setting 756th career home run, August 7, 2007.

Alexander Joy Cartwright, a key figure in the early development of baseball, is generally credited with establishing the distance between bases at 90 feet (27.4 meters).1