CHINA’S capital Beijing is located at the tip of the North China Plain and is surrounded by mountains to the north,northwest,and west.The Great Wall was built across the mountains north of Beijing to guard against nomadic invasions.Due to challenging conditions pertaining to maintaining fully stocked kitchens and supplies,the herdsmen outside the Great Wall had a very simple way of cooking meat.They cut the meat into large pieces with a hunting knife and marinated them with onions,ginger,and seasoning juice for a period of time,then roasted the meat above the strong and direct heat of lit horse dung until the meat was rave.