1845    The Knickerbockers Baseball Club, the first baseball team to play under the modern rules, is founded in New York.

1892    Benjamin Harrison becomes the first President of the United States to attend a baseball game.

1903    Baseball: The Boston Americans play the Pittsburgh Pirates in the first game of the modern World Series.

1904    Pitching against the Philadelphia Athletics at the Huntington Avenue Grounds, Cy Young of the Boston Americans throws the first perfect game in the modern era of baseball.

1912    Opening day for baseball stadiums Tiger Stadium in Detroit, Michigan, and Fenway Park in Boston, Massachusetts.

1921    Baseball: The World Series is broadcast on the radio for the first time.

1929    Babe Ruth becomes the first baseball player to hit 500 home runs in his career with a home run at League Park in Cleveland, Ohio.

1930    The first night game in organized baseball history takes place in Independence, Kansas.

1939    Lou Gehrig, recently diagnosed with Amyotrophic lateral sclerosis, tells a crowd at Yankee Stadium that he considers himself "The luckiest man on the face of the earth" as he announces his retirement from major league baseball.

1944    In baseball, 15-year old Joe Nuxhall of the Cincinnati Reds becomes the youngest player ever in a major-league game.

1945    Baseball: Billy Sianis and his pet billy goat are ejected from Wrigley Field during Game 4 of the 1945 World Series (see Curse of the Billy Goat).

1952    Emmett Ashford becomes the first African-American umpire in organized baseball by being authorized to be a substitute umpire in the Southwestern International League.

1961    Jim Gentile of the Baltimore Orioles becomes the first player in baseball history to hit grand slams in consecutive innings.

1961    At Fenway Park in Boston, Massachusetts, the first All-Star Game tie in major league baseball history occurs when the game is stopped in the 9th inning because of rain.

1965    Astrodome opens. First indoor baseball game is played.

1975    Frank Robinson manages the Cleveland Indians in his first game as major league baseball's first African American manager.

1981    Baseball: Nolan Ryan sets a Major League record by throwing his fifth no-hitter.

1982    Baseball: Rollie Fingers of the Milwaukee Brewers becomes the first pitcher to record 300 saves.

1989    ''Sports Illustrated'' reports allegations tying baseball player Pete Rose to baseball gambling.

1989    ''Sports Illustrated'' reports allegations tying baseball player Pete Rose to baseball gambling.

1989    Cincinnati Reds manager Pete Rose is banned from baseball for gambling by Commissioner A. Bartlett Giamatti.

2007    Barry Bonds of the San Francisco Giants breaks baseball great Hank Aaron's record by hitting his 756th home run.