Because I recently found out there are six flags parks in other states whose patrons DON'T know why. There are six flags that have flown over Texas obviously. (French, Spain, Mexico, Confederate, Republic of Texas and USA
Did you know the name "Texas" comes from a Caddoan Indian word? It is a Spanish corruption of the Caddo word Taysha, which means "friend." Spanish explorers recorded it as Teyas or Tejas. Texas, of course, would be named something that means "friend".
How to Fly Your Texas Flag: A Visual Guide to Flag Etiquette