Historically, sweat has been an active ingredient in perfume and love potions.
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In Korea, there's a man named Lee Jin-gyu who fell in love and married his life-sized Japanese body pillow (called a "dakimakura").
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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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As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
687
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.
25
A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
29
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Parents receive 1 out of every 5 Valentines.
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