In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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Cows can sleep standing up, but they can only dream lying down.
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The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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