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 was an Italian adventurer who spent 17 years in China in the 13th century. Marco Polo was born on September 15, 1254 in Venice, Italy. Marco Polo wrote extensively about his adventures in Asia. Kublai Khan brought Marco Polo with him on official business.