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feb 15, 180 - This was the when Pax Romana had ended. Also when the Romans took a practical approach to science and engineering. They studied stars and plants. To improve health,Roman doctors studied the works of the Greek. One of the greats was Galen who studied the the body. He described the values of the heart and noted differences between arteries and veins.

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8 Nov 2017
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feb 15, 180
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~ 1846 years ago

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