Neandertal genes in people today came from hook-ups around 47,000 years ago
Two genetic analyses clarify when Neandertal genes infiltrated Homo sapiens DNA

An early human woman known as Zlatý kůň (illustrated), whose remains were found in the Czech Republic, lived about 45,000 years ago. She is part of a small population of Homo sapiens whose ancestors mated with Neandertals around 80 generations before her.
Tom Björklund