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 lived in China for many years and learned to speak the language. He traveled throughout China as a messenger and spy for Kublai Khan. He even traveled far to the south to where Myanmar and Vietnam are today.During these visits he learned about different cultures, foods, cities, and peoples.He saw many places and things that no one from Europe had ever seen before.arco Polo was a merchant and explorer who traveled throughout the Far East and China for much of his life. His stories were the basis for what much of Europe knew about Ancient China for many years. He lived from 1254 to 1324.