X-rays were discovered in 1895 and transformed medical imaging.
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Çatalhöyük is one of the oldest known urban settlements.
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The Suez Canal opened in 1869.
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The invention of the thermometer improved diagnosis of illness.
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Some crabs can live both on land and in water.
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The calculator simplified mathematical computation.
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The city of Timbuktu was a center of trade and scholarship.
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The zipper made clothing fastening easier.
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Nothing can travel faster than light in a vacuum.
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