Best Friends Forever: Bert and Ernie have lived together in their famous basement apartment at 123 Sesame Street since the very first episode aired in 1969.

Snuffy's Real Name: While everyone lovingly calls him "Snuffy," this gentle giant elephant-like muppet's official full name is Mr. Aloysius Snuffleupagus.

The Secret Friend: For many years, the adults on the show thought Snuffy was just Big Bird's imaginary friend until he finally met the whole neighborhood in 1985!

Favorite Hobbies: Ernie famously loves taking baths with his beloved Rubber Duckie, while his roommate Bert prefers collecting paperclips and studying pigeons.

Snuffy's Woolly Look: Snuffy is inspired by the prehistoric woolly mammoth, which is why he has such thick, shaggy brown fur and long eyelashes.

Christmas Stocking Origins: The tradition of hanging stockings comes from an ancient story where a kind helper dropped gold coins down a chimney, which luckily landed inside socks drying by the fire.