Question: When did the houston astros start playing baseball?
Disambiguated questions and answers: question: When did the houston astros start playing baseball as the Colt .45s?
When did the houston astros start playing exhibition baseball as the Astros?
When did the houston astros start playing official baseball games as the Astros in the Astrodome?
answer: April 10, 1962
April 9 1965
April 12 1965
Natural Questions answer: 1962 (from the Wikipedia article "Houston Astros")