“The exposure of this section of the Upper Aqueduct and the discovery of the 25 coins may enable– possibly for the first time—an absolute dating of the different stages of the construction of Jerusalem’s water aqueducts. It may shed light on the question of who built the first aqueduct—whether it was the Hasmoneans, or King Herod,” the researchers [Dr. Ofer Sion and Ruth Cohen] say.I noted this story here. But the current article has much more detail. Follow the latter link for more on the upper and lower Jerusalem aqueducts.
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