It commemorates a proclamation made by the first Chilean governmental committee in 1810, and lasts (at the very least) two days.
There are wholesome family events, parties in the countryside and games of the hopscotch-like rayuela, kite-flying, and greased-pole scaling. There are many, many renditions of the cueca, the national dance, a coquettish stalk-and-surrender dance reminiscent of a mating dance between a rooster and hen.