Food - What is Milk? There is strong evidence that proves that milk has played a very important role in the history of man. There are early records that frequently mention that milk and milk products were part of a man's everyday life from childbirth until old age. It was in the year 1922 that a temple near Babylon that was thought to be 5000 years old was discovered by a British-American expedition. In this particular temple can be seen painted walls with different milking scenes of the local people. On the mural, some men are depicted milking cows.