The only US state with a Spanish motto, "Oro y Plata," is Montana. "Oro y Plata" translates to "Gold and Silver" in English and refers to the state's rich mining history. The motto is featured on the Montana state seal.

In 1958, the Hula Hoop became an instant craze among children. While not the first of its kind, the modern plastic version popularized by the Wham-O toy company in 1958 created a massive fad, with an estimated 25 million sold in the first four months, according to History.com. 

The Popliteal Fossa is located at the back of the knee joint, forming a shallow, diamond-shaped depression. It's also commonly referred to as the "knee pit".