The origin of National Crunchy Taco Day is undocumented. The March 21 date coincides with the 1962 opening of the first Taco Bell in Downey, California, which popularized the hard-shell taco for a mass American audience.
The patent nobody remembers
In New York, a Mexican immigrant named Juvencio Maldonado solved a practical problem. Frying individual tortillas by hand was slow and dangerous. Maldonado, an electrician by training, built a metal form that held tortillas in a U-shape while submerged in oil, allowing cooks to fry multiple shells at once.
He received U.S. Patent No. 2,506,305 in 1950. His invention worked, but it never scaled beyond his own restaurant.



