In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
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A cow produces around 200,000 glasses of milk in her lifetime.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
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An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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Your thumb is about the same size as your nose.
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The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
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