A dish with beef and chilies was eaten in Florida long before there was even a Texas. The Spanish developed the dish in St Augustine and there are historical records that have the recipe. There is a good history of this in the Library at the University of Florida if anybody wants to do the research.
Later on the Spaniards spread the dish to present day Mexico and then later into the Southwest, including Texas. The Texans claim that it is their dish but it is typical Texas bullshit. The Texans even write histories of chili claiming it came from Texas but that is just because they never did the research of the dish in Florida.
When I hear a Texan making claims about knowing about chili I just laugh at the pathetic attempt. They are no better at defining real chili than the people from Ohio with their “Cincinnati” chili.