The evidence for dairying was identified in the early 21st century. Milking dairy herds and transforming them into dairy products such as butter, yoghurt, and cheese is only known because of the combined techniques of stable isotope analysis and lipid research. The earliest evidence to date for the processing of milk fats comes from the early Neolithic age of the seventh millennium BC in north western Anatolia; the sixth millennium BC in eastern Europe; the fifth millennium BC in Africa; and the fourth millennium BC in Britain and Northern Europe (Funnel Beaker culture). Click on the link to read more on the ancient history of producing milk. – Thoughtco