In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
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Speed dating was invented by a Rabbi in 1999.
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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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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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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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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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