1. Texas is admitted to the United States- June 23, 1845 marks an important milestone in Texas history as this was the day when Texas was officially admitted as the 28th state of the United States.

2. First post office was opened in Texas- On June 23, 1846, the first post office was officially opened in Texas. Its location was in the city of Houston.

3. Texas Rangers were founded- June 23, 1835 marks the date when the famous Texas Rangers law enforcement agency was founded.

4. The end of Santa Fe Expedition- On June 23, 1841, the Santa Fe Expedition of Texans was officially surrendered to Mexican forces. The group had attempted to claim New Mexico territory but their efforts were eventually met with failure.

5. San Antonio citizens expel the French army- June 23, 1840 saw San Antonio citizens successfully expel the French army, which had taken control of the city a month prior. This event is now known as the Battle of Salado Creek.