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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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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