1. In 1836, the Battle of Refugio took place in Refugio County, Texas. It was a pivotal battle during the Texas Revolution, with Texan forces managing to repel the Mexican Army and secure a victory.

2. On March 16, 1916, Pancho Villa led an attack on the border town of Columbus, New Mexico. The attack resulted in 18 Americans being killed and 80 more wounded. This event ultimately led to the United States' involvement in the Mexican Revolution.

3. In 1933, the Texas Centennial Exposition opened in Dallas. The event marked 100 years since the signing of the Texas Declaration of Independence and featured exhibits showcasing the state's history and culture.

4. On March 16, 1999, the Houston Livestock Show and Rodeo set an attendance record with over 160,000 visitors. The event is now one of the largest livestock shows and rodeos in the world, attracting millions of visitors each year.

5. In 2010, the Texas Board of Education adopted controversial new social studies curriculum standards, sparking nationwide discussion and debate. The standards have been criticized for their emphasis on conservative viewpoints and their handling of issues such as slavery and civil rights.