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  (B.C.-A.D. 206) the silk road was established
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  (200 B.C.) the Han Dynasty opens up the Silk Road trade route out westward
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  (B.C. 300) Alexanders empire begain to expain into central Asia
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  (B.C. 300) the first yard of silk was produced in China
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  (100 A.D.) silk was first seen in Rome from China due to the trade route.
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  (A.D. 600) Roman empie becomes Byzantine empire.
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  (400 A.D.) a Chinese prinsess smuggled silkworm eggs out of China and silk worm farms expand throughout Central Asia
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  (1400 A.D.) the Ming Dynasty closes the trade route
