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  Trade of religious thought. Buddhism, Hinduism, Jainism, spread from India to Southeast Asia more by merchants and not missionaries.
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  Persian jewels were traded
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  Greek and Roman Sailors began trading on the Indian Ocean.
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  Trade of Roman coins, cloth, ceramics, pottery, metal wares, glass, beads, incense, spices, coral and pearls. Also imported silver, copper, and gold.
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  Alexander the Great died when he was returning to Babylon.
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  Ptolemies charted the monsoon system in the Indian Ocean. This helped signify the best times to sail.
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  India trades pepper and spices. Persia and Egypt trades grain. Mediterranean trades wine and oil.
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  Trade of Silk
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  Romans traded coins with the Indians
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  Began to flourish with the rise of the Roman Empire. Provided peace and stability encouraging merchants to travel abroad and seek luxury goods like silk.