1. On July 15, 1836, the Republic of Texas officially established its navy by passing a law to create a Department of the Navy. This marked a significant step in the young country's efforts to defend itself against Mexico and other potential threats.

2. In 1869, the first shipment of refrigerated beef was sent from Texas to the East Coast. This innovation revolutionized the meat industry and helped establish Texas as a major player in the agricultural economy.

3. On July 15, 1960, the first version of the iconic Dr Pepper "I'm a Pepper" advertising campaign debuted. The catchy jingle and upbeat commercials helped solidify the brand's place in American culture.

4. In 1974, the city of Houston hosted the first World Powwow Championship, which brought together Indigenous dancers and musicians from around the world. The event helped raise awareness of Native American traditions and cultures.

5. On July 15, 1996, the state of Texas officially recognized Juneteenth as a state holiday. This day commemorates the end of slavery in the United States, which was declared in Texas on June 19, 1865. Texas was the first state to designate Juneteenth as a holiday, and it has since been recognized by many other states and municipalities.