In 1920, the inaugural season of the National Football League (NFL), 11 veterans of Major League Baseball (MLB) (including George Halas and Jim Thorpe) became the first athletes to accomplish the feat. Since 1970, only seven athletes have done so, including Bo Jackson and Deion Sanders.
The Constitution of the Republic of Texas (1836), the first Anglo-American constitution to govern Texas, was drafted by a convention of fifty-nine delegates who assembled at Washington-on-the-Brazos on March 1, 1836 (see CONVENTION OF 1836).
On December 19, 1836, the First Congress of the republic declared the southern and western boundary of Texas to be the Rio Grande from its mouth to its source and thence a line due north to the forty-second parallel.