2005 Pendleton Round Up, Pendleton, Oregon...Following a July 4th celebration in 1909 consisting of bronc riding, horse races by Indians and Non-Indians, Indian feasts and war dances, greased pig contests, sack races, foot races and fireworks, some community and area leaders conceived the idea of an annual event to be known as the Pendleton Round-Up. Also, at that time, the Let'er Buck slogan, which is symbolic of the Round-Up, was inspired.