Ravi
Diamond Member
For the reading comprehension challenged, that means that the interbreeding occurred over a long period of time that encompassed the entirety of human migration
Neanderthals, who left Africa about 400,000 to 800,000 years ago, evolved in what is now mainly France, Spain, Germany and Russia, and are thought to have survived until about 30,000 years ago.
Early modern humans left Africa about 80,000 to 50,000 years ago.
Modern humans carry Neanderthal DNA - UPI.com
So the window is between 30,000 and 80,000 years ago, not the entirety of human migration.