1. On September 1, 1836, the first Congress of the Republic of Texas met in Columbia, Texas. This marked the establishment of the new independent nation's legislative branch.

2. September 1, 1900, is known as the infamous "Galveston Hurricane" that devastated the city of Galveston, Texas, killing an estimated 8,000 people. It remains one of the deadliest natural disasters in US history.

3. In 1919, September 1 marked the first day of classes at Southern Methodist University (SMU) in Dallas, Texas. The university has grown to become a prominent research institution with a thriving campus community.

4. On September 1, 1923, the Texas State Fair opened its gates in Dallas for the very first time. Today, the annual event draws millions of visitors each year, featuring attractions such as livestock shows, carnival rides, and live music.

5. September 1, 1961, was the day when the University of Texas at Austin admitted its first black undergraduate student, Bertha Sadler Means. This marked a significant milestone in Texas civil rights history and paved the way for greater diversity and inclusivity in higher education across the state.