The origin of chili powder can be traced back to Mexico, where various types of chili peppers have been used in cooking for thousands of years. The Aztecs, for example, used chili peppers in their cuisine as early as the 16th century.
The creation of chili powder, as we know it today, is often attributed to a German-American named William Gebhardt. In the late 19th century, Gebhardt opened a Mexican restaurant in New Braunfels, Texas, and began experimenting with different blends of chili peppers and spices.
In 1896, Gebhardt developed a ground chili powder that became popular in Texas and other parts of the United States. His blend included chili peppers, cumin, oregano, and garlic, among other ingredients.
Over time, chili powder became a popular spice in American cuisine, and different regions developed their own variations of the blend. Today, chili powder is widely used in Mexican, Tex-Mex, and other types of cuisine, and is available in many different varieties, from mild to extremely hot.