"Simply untrue" is not accurate. "History" starts after written records 3200bc so well within 10k BC, "Dairy" includes cheese which existed through all of hist

"Simply untrue" is not accurate. "History" starts after written records 3200bc so well within 10k BC, "Dairy" includes cheese which existed through all of history as in written records and before electricity people could not store pure milk. From your links: "Harpending and co-author Gregory Cochran, both at the University of Utah, argue that the ability to digest lactose shaped human history. Lactose-tolerant populations, they claim, could better survive famines, and may also have been better conquerors, aiding the spread of their civilizations and cultures."