In Hong Kong, a betrayed wife is legally allowed to kill her adulterous husband, but may only do so with her bare hands. (The husband's lover, on the other hand, may be killed in any manner desired.)
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Raj from the Big Bang Theory is married to Miss India.
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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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A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
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In 2007, a woman named Erika La Tour Eiffel married the Eiffel Tower.
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In Japan, it is tradition for husbands to get a monthly allowance from their wives.
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