Interesting read on the "history" of chili:
1850 – Records were found by Everrette DeGolyer (1886-1956), a Dallas millionaire and a lover of chili, indicating that the first chili mix was concocted around 1850 by Texan adventurers and cowboys as a staple for hard times when traveling to and in the California gold fields and around Texas. Needing hot grub, the trail cooks came up with a sort of stew. They pounded dried beef, fat, pepper, salt, and the chile peppers together into stackable rectangles which could be easily rehydrated with boiling water. This amounted to “brick chili” or “chili bricks” that could be boiled in pots along the trail. DeGolyer said that chili should be called “chili a la Americano” because the term chili is generic in Mexico and simply means a hot pepper. He believed that chili con carne began as the “pemmican of the Southwest.”
https://whatscookingamerica.net/History/Chili/ChiliHistory.htm