Fast food has been a part of the American dining landscape since the 1920s, although it didn't become a staple of our routines until the 1950s and '60s, when drive-thrus dominated the landscape. Today ...

For decades, the fast-food industry was dominated by a relatively small group of giants. McDonald’s, Burger King, Wendy’s, Taco Bell, and a handful of other major brands controlled much of the ...