The narwhal, a species of whale, are massive amimals found in the arctic. The mystical belief was that narwhal tusks were the horns from the legendary unicorn. These horns were considered to have magic powers so Vikings and other northern traders were able to sell them for many times their weight in gold. The tusks were used to make cups that were thought to negate any poison that may have been slipped into the drink. During the 16th century, Queen Elizabeth received a carved and bejeweled narwhal tusk for £10,000—the cost of a castle at the time.
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