Question: When did texas become part of united states?
qaPairs: question: When did texas city, texas become incorporated as part of united states?
answer: 1911
question: When did texas county, Missouri become part of united states by changing its name to Texas?
answer: February 14, 1845
question: When did texas county, Oklahoma become part of united states?
answer: 16 November 1907
question: When did the state texas become part of united states?
answer: December 29, 1845