In the last 7 years, humanity has discovered 43 potentially habitable planets.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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There are so many kinds of apples that if you ate a new one everyday, it would take over 20 years to try them all.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
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The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
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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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