The ancient Silk Road carried goods from China to Rome via the Middle East. I would imagine that some babies were fathered along the route by various traders.
https://en.wikipedia.org/wiki/Tarim_mummies
...Notable mummies are the tall, red-haired “Chärchän man” or the “Ur-David” (1000 BCE)...
Many of the mummies have been found in very good condition, owing to the dryness of the desert ... The mummies share many typical Caucasian body features .., and many of them have their hair physically intact, ranging in color from blond to red to deep brown, and generally long, curly and braided