It's been 57 years since the Houston Astros were the Colt .45s

The Houston Astros: Six decades of baseball history

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The Ultimate Houston Astros Trivia Book: A Collection of Amazing Trivia Quizzes and Fun Facts for Die-Hard Astros Fans!: Walker, Ray: 9781953563378: : Books

Colt .45s host St. Louis for the first time and defeat them, 4-3 - This Day In Baseball

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Houston Astros Wear Throwback Colt .45s Jerseys on Team's 50th Anniversary, News, Scores, Highlights, Stats, and Rumors

Houston MLB team changes from Colt .45s to Astros on Dec. 1, 1964 - ABC13 Houston

It's been 57 years since the Houston Astros were the Colt .45s

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Colt .45s: Which MLB team was formerly known as the Colt .45s?

100 Things Astros Fans Should Know & Do Before They Die (World Series Edition) (100 ThingsFans Should Know): McTaggart, Brian, Biggio, Craig: 9781629375953: : Books