Sandwiches: simple, portable, endlessly customizable, delicious... Everyone has their favorite, from easy PBJs and grilled cheese, to towering Clubs and meaty Reubens, to delectable tea sandwiches and canapés. 300 million sandwiches are eaten by Americans every day, and they are popular all over the world — but have you ever stopped mid-bite to think about their history, or consider how many different types of sandwiches there really are?

Well, you're in luck because other Quizlet users have! Want to know more about how the sandwich got it start? Check out Sandwich History. Wondering about popular sandwiches in other countries? Start with Spain and France. Need help deciding what type of sandwich you'll be eating later today? Choose from these classic types and regional varieties. Happy National Sandwich Day!