There were highly advanced aqueducts /in Spain/ long before the Moors came along.
It is the fallacy of simple location to try to pinpoint concrete details in explicit segments of space and time. It does not matter to Leibniz where Newton discovered calculus, only whether Newton did so first by up to a decade. It would be fallacy of simple location for Leibniz to claim, "but that was at Cambridge, not Paris." The Romans can no more claim validly they were first in Spain with the aqueduct than Leibniz can claim validly he was first in Paris with the calculus.
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It is the fallacy of simple location to try to pinpoint concrete details in explicit segments of space and time. It does not matter to Leibniz where Newton discovered calculus, only whether Newton did so first by up to a decade. It would be fallacy of simple location for Leibniz to claim, "but that was at Cambridge, not Paris." The Romans can no more claim validly they were first in Spain with the aqueduct than Leibniz can claim validly he was first in Paris with the calculus.