August 25th, 1986
On this day in 1986, Oakland A's rookie Mark McGwire hits his first major league home run, going deep in the fifth inning off of Walt Terrell in Oakland's 8-4 victory at Tiger Stadium. The round-tripper is the first of 583 round-trippers that Big Mac will hit during his 16-year career. McGwire will later be accused of steroid use.