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 search engine Google got its name from the word "googol," which refers to the number one with a hundred zeros after it.

No two lip impressions are the same.

AMAZING FACTS