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I admit this is drifting, but jep -- the monotheistic religions didn't invent nationalism as opposed to tribalism (China had it, as did Rome, the Greek city-states, the Aztecs, and many other societies). As for industry, there's no reason to believe it wouldn't have evolved in a polytheistic society. A number of polytheistic cultures attained great achievements in science and engineering: Egypt, the Maya, China, Greece, Rome, etc. Some of those societies are the ones that contributed the knowledge the monasteries preserved during the Dark Ages.
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