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The Knickerbocker Rules, or the New York Game, established modern baseball’s rules.
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Association of amateur clubs, primarily from the New York City area , organized.
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Baseball’s first all–professional team, the Red Stockings, founded.
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Though plagued by financially weak franchises and players jumping from team to team, baseball’s first professional league, the National Association, operated for five seasons
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New six team major league began its ten year run with teams playing in cities without a National League club
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Financially weakened by long years of competition with the National League, the American Association disbanded
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Ban Johnson renamed his Western League the American League and declared it a major league to challenge the twenty five year old National League.
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Boston defeated Pittsburgh in the first postseason meeting between the champions of the American and National Leagues.
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President Wilson became the First president to throw the first pitch in a world series
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Following the Black Sox Scandal of 1919, the National and American Leagues agreed to appoint one person, Kenesaw Mountain Landis, to oversee organized baseball.
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Baseball is broadcast on radio for the first time.
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Babe ruth hits his 500th career homerun
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Major League Baseball's first All-Star game is played.
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Major League Baseball's first night game is played.
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Joe DiMaggio hits safely in 56 consecutive games
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Jackie Robinson makes his Major League debut.
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First televised World Series
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Babe Ruth dies of nasopharyngeal carcinoma
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Roger Marris passes Babe Ruths 60 homerun mark by hitting 61
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The league expands giving Houston Texas a basball team called the Houston Colt 45's. Today the are called the Houston Astros
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marked the beginning of the MLB First-Year Player Draft
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he First Dome Stadium Opend to Public in Houston,Texas called the Astrodome it was the First Dome Stadium In Major League Baseball
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The designated hitter rule is established
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The Toronto Blue Jays played in their new stadium witch came with an Rectractable roof
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The year without a World Series: the longest and costliest strike in baseball history begins on August 12, and lasts until the following spring
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For the first time, the Major League baseball season opens in Tokyo, Japan (Chicago Cubs vs. New York Mets)
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Instant replay was used for fair (home run) or foul, whether the ball actually left the playing field, and whether the ball was subject to spectator interference
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Following the 2008 season old yankee stadium was closed and a new one was being bulit and opened the next season
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The Houston Astros move to the american league west
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The Houston Astros are the first team in history to have the worst record in the league three years in a row
