The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
14
Play-Doh was first manufactured as a wallpaper cleaner.
122
Moths are unable to fly during an earthquake.
328
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Your fingernails grow faster in summer.
744
The human sigh acts as a physiological reset button.
23