April 16, 1963: On Opening Day at County Stadium, Eddie Mathews hits the 400th home run of his career off of Philliesâ Jack Hamilton. It was a two-run shot, driving in Hank Aaron. Â At the time, Mathews became 7th on the all-time home run list. Trailing only Ruth, Foxx, Williams, Ott, Gehrig & Musial.
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