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 name "Lego" came from the Danish word LEg Godt, which means "play well."

Over one million Pet Rocks were sold in 1975, makine Gary Dahl, of Los Gatos, California, a millionaire. He got the idea while joking with friends about his pet that was easy to take care of, which was a rock.

AMAZING FACTS