Final answer:
The Chinese invented significant tools and techniques like gunpowder, the compass, paper currency, and the movable type printing press, and built the Great Wall of China, all many centuries before Marco Polo. However, they did not discover America.
Step-by-step explanation:
The Chinese, many centuries before Marco Polo, achieved various significant feats. They invented gunpowder which played a major role in warfare. They also invented the compass, crucial for navigation and exploration, and were responsible for the creation of paper currency. They built the Great Wall of China for protection against invasions. Further, they invented the movable type printing press in the 9th century, way before its invention in Germany in the 15th century. However, it is important to note that they did not discover America.
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