OKLAHOMA

The shopping cart was invented in Oklahoma

Sylvan Goldman introduced the shopping cart in 1937 at his Humpty Dumpty supermarket in Oklahoma City.

Oklahoma City is prone to tornadoes

Oklahoma City is located in "tornado alley" and is known for being prone to tornadoes.

The scissor-tailed flycatcher was chosen as the state bird because it eats harmful insects and nests in Oklahoma.

The name Oklahoma comes from Choctaw words

The name Oklahoma comes from the Choctaw words okla, which means "people", and humma, which means "red".

Cimarron County is the only county in the United States that borders four states: Colorado, Kansas, New Mexico, and Texas.

Oklahoma has parts of four mountain ranges, the Ouachitas, Arbuckles, Wichita, and Ozark mountain ranges.

Alabaster Caverns has the world's largest deposit of alabaster

Alabaster Caverns, located near Freedom, has the world's largest deposit of alabaster.

The Oklahoma City capitol building is the only capitol building in the United States with a working oil well on its grounds.