In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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The largest breed of rabbit is the Flemish Giant.
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The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
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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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