Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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The left ear is more responsive to words of love and emotion whispered into it than the right.
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Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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Speed dating was invented by a Rabbi in 1999.
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