We had come to a small round area dug in the ground which the guide said was for making a fire. “Around 2,000 B.C. the climate changed, and it became cold. People used this to make a fire with coal for heat. It also served them for cooking. They barbequed, boiled water, made soup and also something that was very similar to our yogurt, almost made the same way: milk mixed with something from the stomach of sheep which turns the milk into yogurt or cultured cheese.”