How do you measure the soul of a city? In Denver, for the better part of five decades, its been by the Broncos. From an ugly and inauspicious beginning to the first nationally televised Monday night game in 1973, through postseason games that included back-to-back World Championships and four other Super Bowl appearances, the Broncos have provided the Mile High Citys primary identity on a national level. The nations first truly regional sports franchise, the Broncos were the first major league team to call Denver home, beginning play as a charter member American Football League, its first season being 1960.