About 1 in 2,000 people are born with an extra finger or toe.
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The development of CT scans improved diagnostic precision.
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The Siege of Jerusalem in 70 CE led to the destruction of the Second Temple.
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Short-term memory typically holds only a limited number of items at once.
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Your mind explores reality.
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The first test-tube baby was born in 1978.
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Some metals explode when they touch water.
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The phonograph recorded and replayed sound.
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