Archaeologists excavated some stone nameplates dating from BC 1700 in Mesopotamia between the Tigris River and the Euphrates River, which were engraved with the cooking methods of making food from buffalo, antelope and pigeon meat. These ingredients need to be stewed in clear soup or vegetable soup made of beef or mutton. Sprinkle some bread crumbs when serving. Archaeologists believe that this is the oldest recipe in human history. In China, it is generally believed that the oldest existing recipes appeared in the Northern Song Dynasty about 1000 years ago. In fact, nearly 100 kinds of recipes are recorded in his book Qi Yaomin's Book.