The early UFC events from 1993-2001 had very few rules, allowing techniques like eye gouging and head butting. This led to more injuries and unfair fights. Royce Gracie was the first UFC champion by using ground fighting to defeat larger opponents. Over time, weight classes and more structured rules were added to promote safety and fairness. By 2001, the UFC had evolved into the modern sport it is today with standardized rules and weight divisions.