Back in the day, everyone knew what a sandwich was. But recently, the definition of a sandwich has become more complicated. Is a stuffed pita a sandwich? What about a burrito? It matters because different foods are taxed or regulated based upon their food classifications. New York used to tax burritos as sandwiches until a judge ruled that the Mexican inspired wrap is not a sandwich. 

The Atlantic dissects and ponders what exactly is a sandwich in this delicious video