while the river valley of ancient Mesopotamia was extraordinarily fertile and produced huge surpluses of grain and other foodstuffs, and supported enormous numbers of livestock, which in turn supported a vast wool and leather industry, it was almost completely lacking in anything else. Stone, wood, metal, even the silver used as money, all had to be imported. From quite early times, then, Temple administrators developed the habit of advancing goods to local merchants—some of them private, others themselves Temple functionaries—who would then go off and sell it overseas. Interest was just a way
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