As hot dog historians ourselves, we always appreciate a deep-dive into frank lore. And Mental Floss put together a pretty spectacular video about the hot dog's humble beginnings, reaching all the way back to its ancestor, the sausage (Homer and Emperor Nero were fans), before arriving at the controversial "sausage schism" of Church Vienna and Church Frankfurt. Each European city claims to be responsible for the dogs we know today, and each tells a very different origin story. Make your allegiance known in the comments, or just pull a Switzerland by silently enjoying a frank as the two sides duke it out.
Kristin Hunt is a food/drink staff writer for Thrillist, and would have much rather studied the sausage schism than all those dumb religious ones in history class. Follow her to lesson plans at @kristin_hunt.