1. On September 21, 1836, the Battle of San Jacinto Memorial was dedicated in honor of the soldiers who fought and won the battle on April 21, 1836, bringing an end to the Texas Revolution and securing the independence of Texas from Mexico.

2. On September 21, 1886, the state fair of Texas, one of the largest and most well-known state fairs in the country, opened its doors for the first time. The fair, which runs for three weeks every September and October, features livestock shows, carnival rides, concerts, and a wide variety of fried foods.

3. On September 21, 1937, J.T. Canales became the first Mexican-American to serve as a district judge in Texas. Canales worked tirelessly throughout his career to promote equality for Mexican-Americans and to fight against discrimination and injustices.

4. On September 21, 1961, the first group of Peace Corps volunteers arrived in Tanganyika (present-day Tanzania), with several of them hailing from Texas. The Peace Corps, established by President John F. Kennedy in 1961, sends American volunteers to work in developing countries all over the world, promoting friendship, understanding, and cultural exchange.

5. On September 21, 2017, Hurricane Harvey, one of the costliest and most devastating hurricanes in US history, made landfall on the Texas Gulf Coast. The storm caused unprecedented flooding and damage, particularly in the Houston area, and resulted in the deaths of dozens of people. In the years since, Texans have worked tirelessly to rebuild and recover from the storm's devastation.