[ronnietherocket3]

All the geographic agreement possible means nothing - if the human DNA does not bear the human migration from Egypt to China.

It may not actually. If not many Egyptians migrated to China The genetic anomalies may get pushed below natural variation. They may have been able to insert themselves into Chinese culture without changing the genes much. E.g., what if no Europeans followed Cortes to the New World? He had still conquered Mexico and Aztec culture would have fallen/changed significantly, but there would be few Europeans to breed with.

[drpix]

Those Egyptian elites, either brought the Egyptian soldiers required to depose the Chinese elite and subjugate the Chinese population - in which case the Egyptian soldiers would have done what soldiers have always done: fornicate with the conquered woman.

Or, they enticed the Chinese elite into becoming some part of the Egyptian ruling court - in which case the Egyptian nobility would have done what nobility have always done: fornicate with the Chinese beauties brought to court.

In either case, conquering societies/cultures never fail to leave their DNA markets somewhere in the population of the conquered.