Hello class! Please take your seats. I have a question for you. What did you eat for lunch today? Chances are some of you had a sandwich. A sandwich is a perfect lunch food because you can make it ahead of time, add many different types of ingredients to it, and eat it without any utensils.
Did you know there was actually a time when people didn't eat sandwiches? It's hard to imagine, but it's true! Of course bread, meats and cheese have been staples of the human diet for many thousands of years, and it's very likely that people ate them together, but putting your favorite ingredients between two slices of bread wasn't something that was commonly done until the late 1700's.