Year Adopted: 1839.

The Texas state flag is the 1839 national flag of the Republic of Texas. The state flag is a rectangle that has a width to length ratio of two to three. It contains one blue vertical stripe that has a width equal to one-third the length of the flag, and two equal horizontal stripes, with the upper stripe white, the lower stripe red, and each having a length equal to two-thirds the length of the flag. The flag has one white, regular five-pointed star. The five-pointed star is located at the center of the blue stripe, oriented so that one point faces upward, and sized so that the diameter of a circle passing through the five points of the star is equal to three-fourths the width of the blue stripe. The red and blue of the state flag are the same colors used in the United States flag. The red, white, and blue of the state flag represent, respectively, bravery, purity and loyalty.

Texas was at one time a province of New Spain. After the Mexican War of Independence (1810-1813), Mexican Texas was controlled by the Empire of Mexico which then became the Republic of Mexico (1823). The Texas Revolution began with the Battle of Gonzales in 1835 and culminated in 1836 with independence and the establishment of the Republic of Texas. The Lone Star Republic of Texas was an independent sovereign nation from 1836-1846 and annexed to the United States in 1845. The Alamo flag and the Gonzales Banner are two historic flags of Texas.