As we all know,Central Asia has been the birthplace of the White race and had been dominated by White Iranians,Aryans,Tocharians and other Non-Indo-European Whites(even now like Finnic people in Russia). With a POD as early as possible,what would result in those regions remaining dominant by White people? More settled civilization capable of assimilating the Turkic and other Asian migrants built by Iranian,Tocharian,Indo-Aryan or Finnic people? What else would arrive at this?Greek or Roman settlement and assimilation?An earlier Slavic or Germanic expansion into the East?Finnic expansion?
Please note that Colonial Genocides,Nazism,concentration camps,etc are strictly prohibited in this thread. Killings should only include wars and military defeats and no civilian mass killing scenarios are allowed. Only cultured and peaceful settlements and developments like OTL Greeks,Romans,etc are allowed.