I think it's mostly because the promise of wealth and power
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Answer:
On the surface, the most apparent cause of the Enlightenment was the Thirty Years' War. This horribly destructive war, which lasted from 1618 to 1648, compelled German writers to pen harsh criticisms regarding the ideas of nationalism and warfare.
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Answer:
Everything became more widespread and people could get information alot easier
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Sparta's policies were the most harsh and strict so it's D. Sparta