In the history of baseball, only 26 players have hit 50 or more home runs in a season, and those 26 have done so a combined 42 times, 18 of which occurred during the 75 seasons from 1920 to 1994. The remaining 24 occurred in just 13 seasons, from 1995 to 2007. It is no coincidence that this was the height of the PED era, and many of these totals preceded effective testing. Indeed, the six greatest single-season home run totals, all attained by just three players (Barry Bonds, Mark McGwire and Sammy Sosa), occurred in a span of only four seasons, from 1998 to 2001. It is also no coincidence that baseball was without a commissioner for six years following Faye Vincent's resignation in 1992, and it was during this leadership vacuum that players' bodies began to bulk up along with their home run totals.