In the mid-50s, a San Bernardino man named Glen Bell is fixated on McDonald’s. His own burger stand is in shambles, and he’s trying to bounce back. When he looks around, though, he realizes Mexican food is gaining popularity, but that most Americans are afraid of anything that strays from their bland palettes. That’s when he realizes: A taco is really a burger in a shell. With a few fits and starts, Taco Bell is born.