On June 12 1975 – 36 year old Oakland Athletics outfielder Billy Williams hits his 400th career home run. He became the 16th player to reach the mark with his 3 run shot. The game also featured Hank Aaron’s first homerun in Milwaukee since Sept 30, 1965 in the Brewers 9-7 win over the A’s.
He retired in 1976 with 426 homers and a .290 batting average.