Ketchup was sold in the 1830s as medicine.
Leonardo da Vinci could write with one hand and draw with the other at the same time.
The gorge of the Grand Canyon is 217 miles long. 56 of those miles are in the Grand Canyon National Park in Arizona. The canyon varies in width from 4 to 18 miles.
It takes 17 muscles in your face to smile, 43 to frown.
The skin on the foot or palm of your hand wrinkles when it is exposed at length to water because it expands.
Trivia of the Day 