1. On March 30, 1870, the Texas Constitution was adopted, leading to the readmission of Texas into the United States following the Civil War.

2. On this day in 1900, the first-ever rodeo in Fort Worth, TX, took place. It was a four-day event that featured steer roping, fancy riding, and other rodeo-related activities.

3. In 1945, on March 30, the Texas City Disaster occurred when a fire broke out aboard a ship carrying ammonium nitrate. The explosion killed over 500 people and injured thousands, making it one of the worst industrial accidents in US history.

4. On March 30, 1981, John Hinkley Jr. attempted to assassinate President Ronald Reagan in Washington, D.C. Texas native and White House Press Secretary James Brady was also seriously injured in the attack, which led to the passage of the Brady Handgun Violence Prevention Act in 1993.

5. In 2001, on March 30, a group of 52 Cuban refugees reached the shores of Boca Chica Beach near Brownsville, TX, after being stranded at sea for over two weeks. They were eventually granted asylum in the United States.