Yo quiero tacos
According to Smithsonian Magazine and Jeffrey M. Pilcher, history professor at the University of Minnesota, the origins of the taco are unknown. Pilcher’s best guess is that “it dates back to the 18th century silver mines in Mexico, because in the mines the word ‘taco’ referred to the little charges they would use to excavate the ore. And one of the first types of tacos described in the 19th century is called tacos de minero—miner’s tacos.” First mentioned in a 1905 newspaper in the United States, the popularity of tacos has grown ever since. And although we don’t need much instruction on how to eat tacos, there are some etiquette rules to help keep it clean. When it comes to hard shells, it seems obvious that crisp tacos should be eaten with your fingers, as cutting a crisp shell with a knife and fork will almost certainly cause it to crack and crumble. Do use a fork to scoop up any filling that might fall to your plate, adds Etiquettescholar.com. Soft tacos, topped with a sauce, on the other had, may eaten with a knife and fork, though if they’re sans sauce you can also eat them with your fingers.
Check out The Real History of Cinco de Mayo.