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*Note the westward expansion of the Indo-Europeans, or Aryans, into the European continent is one theory among others.
What is known is that the founding stock of what became the general tribes of white people all coalesced in Europe.
Thank you to Ricardo Duchesne for his research and insights.
-Faustian Man in a Multicultural Age by Ricardo Duchesne
-The Uniqueness of Western Civilization by Ricardo Duchesne
From my summary of his Uniqueness… book: