How Well Do You Know Texas?Share:FacebookPinterestTwitterMailBefore joining the U.S., Texas was an independent nation for how many years?40%Next Correct Incorrect Texas was an independent republic from 1836 to 1845 before becoming the 28th U.S. state. Before joining the U.S., Texas was an independent nation for how many years? 2 years 5 years 9 years 13 years 40%