Spiked and studded dog-collars derive from the days of the Ancient Greeks, who would give their sheep-dogs sharply spiked collars to protect their necks from wolves whilst they watched over a Sheppard's flock at night.

The Tibetan name for Mount Everest is Chomolungma.

The song "Happy Birthday" brings in about $2 million in licensing revenue to Warner Communications who hold the copyright to the song.

AMAZING FACTS