1. In 1835, the Texas Army fought and won the Battle of Concepción against Mexican forces. This battle became an important moment in the Texas Revolution and boosted morale for the Texian forces.

2. In 1842, the United States and Mexico signed the Webster-Ashburton Treaty, which established the border between Texas and Mexico. This treaty also helped prevent a potential war between the two countries.

3. In 1908, the University Interscholastic League (UIL) was established in Texas. The UIL is responsible for organizing academic and athletic competitions for high school students across the state.

4. In 1933, the Texas Centennial Exposition opened in Dallas to celebrate the 100th anniversary of Texas' independence from Mexico. The exposition showcased the state's history, culture, and achievements.

5. In 1998, the Aggie Bonfire collapsed at Texas A&M University, killing 12 students and injuring 27 others. The incident led to changes in the university's traditions and safety measures.