Did Chinese invent the sandwich? - The Big Bang Theory

On Chinese Food Night, Penny shows up with a hot pastrami sandwich purchased from a food truck parked outside the building. Sheldon is undone by her rebellion. Although Amy makes a solid case for sandwiches having been invented by the Chinese, therefore qualifying Penny’s dinner as a type of Chinese food.
S11E19 The Tenant Disassociation episode.
#TBBT #TheBigBangTheory