This day in enhanced history:

August 4, 2007, Barry Bonds hit his 755th homer to tie Hank Aaron as the all-time leader in that category. Bonds belted his opposite-field homer off Clay Hensley of the Padres at PETCO Park in San Diego. Ironically, Hensley had been suspended for steroid use in 2005. In a move of pure class Hank Aaron video taped a message to Bonds.

August 4, 2007, Yankee third baseman Alex Rodriguez hit his 500th homer, becoming the 22nd player to reach the milestone. At 32 years, eight days, Rodriguez is the youngest to reach the 500-mark. The homer came against Kansas City's Kyle Davies at Yankee Stadium.

Historic Milestones -

August 4, 1996, Earl Weaver, who guided the Orioles to a World Series title in 1970, and 1,480 wins in 18 seasons, was inducted into the Hall of Fame, along with Jim Bunning, Bill Foster, and Ned Hanlon

August 4, 1985, Tom Seaver of the Chicago White Sox wins his 300th game. Seaver defeats New York, 4-1, on "Phil Rizzuto Day" at Yankee Stadium. On the same day, Rod Carew of the California Angels enters the 3,000-hit club when he singles against his former team, the Minnesota Twins

Oddities:

August 4, 1982, Joel Youngblood becomes the first player to collect hits for two different teams in two cities on the same day. After driving in the winning run for the Mets in Chicago, Youngblood is traded to the Expos. He flies to Philadelphia, enters the game in the fifth, and later singles against Steve Carlton