Settlers escaping the Dakota War of 1862. At the core of the westward expansion was the idea of Manifest Destiny—the belief that American settlers were destined to expand across the continent.

Cleo Hearn wants to make sure everyone remembers the real history. "Black cowboys in history books.. [are] damn near forgotten," Hearn told a documentary crew in 2016.

Black and white photos of Main Street, USS Texas and the downtown Houston skyline appear in color with the help of a new, web-based AI tool.