The Cheyenne Frontier Days Rodeo is an annual rodeo held in Cheyenne, Wyoming. It is without doubt one of the largest rodeos on the planet and attracts over 200,000 guests every year.
The rodeo was first held in 1897 to have fun the opening of the brand new Union Pacific Railroad line by way of Cheyenne. The rodeo has been held yearly since then, aside from a couple of years throughout World Warfare II.