What event/person made Texas unique in U.S.? and how?

I live in Texas and social studies is my favorite so I know a lot about that.1. Texas was a country.2.Battle of the Alamo.3.Texas was the biggest state until Alaska became a state that made Texas the second largest state,Calif. is the third.4.we are known for being dare devils.5.Texas heroes such as Sussana Dickinson,Sam Houston,David Crochet,Andrew Jackson ect.6.Texas had the second greatest population in America,Calif. has the first.