Art From Sandwiches

Initially perceived as food men shared while gaming and drinking at night, the sandwich slowly began appearing in polite society as a late-night meal among the aristocracy. The sandwich's popularity in Spain and England increased dramatically during the 19th century, when the rise of an industrial society and the working classes made fast, portable, and inexpensive meals essential.
It was at the same time that the sandwich finally began to appear outside of Europe. In the United States, the sandwich was first promoted as an elaborate meal at supper. By the early 20th century, as bread became a staple of the United States diet, the sandwich became the same kind of popular, quick meal as was widespread in the Mediterranean.