The european recovervy from christianity begain in 1200 continued with the hanse

The european recovervy from christianity begain in 1200 continued with the hanseatic league, and was thrown into full gear by the muslim destruction of constantinople, and the muslim closure of those ports. This created the age of sail. The age of sail created the opportunity for naval empires instead of territorial empires, and led to the british invention of the modern rule of law state, and the subsequent agrarian, commercial, financial, industrial, and technological revolutions. The first world war was a reaction to the napoleonic wars, and the destruction of the holy roman empire, followed by german attempts at recovery and restoration. The second world war continued this end-of-empires but were largely over the liberal and fascist reactions to communism, which is a reformation of abrahamic religion, most closely, judaism.
Now, christianity is the most effecdtive religion for the transformation to a majority middle class economy, so despite it’s superstitious nonsense, it doesn’t conflict with real world legal, economic, and scientific innovation, adaptation, and evolution.
In other words, the west expands by trade, not by cult. Cult merely provides a route to middle class majoritarianism and the resulting economic prosperity. Why? low trust islam, high trust christianity.
However given that IQ is a proxy for self regulation, then the success at europeanism and christianity together are somewhat limited by group average IQ.
This is why IQ is a perfect proxy for all human behavior across all nations.

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