Although only about one person in ten with a positive skin test or blood assay ever develops. TB disease, the risk continues throughout the rest of your life. The symptoms of TB are. common to many other illnesses.
Marco Polo-Great Silk Road. For many centuries the Great Silk Road connected a complex network of trade routes from Europe with Asia. It was a way to establish contact with the great civilizations of China, India, the Near East and Europe.
Marco Polo's journey was from 1271 to 1295, it took 24 years. He  traveled along the silk road, reaching Mongolia and China. Edit. Share to: 1  The History of Fort Lee Virginia Fort Lee in Virginia goes a long way back in American history.