The Great Wall of China was built to protect the Chinese from invaders (such as the Mongolians or any other neighboring country from attacking). It was originally build to defend from one side, but later was restructured to defend against all sides.
The Silk road was much more because it was the only way to connect to China and trade with them. Chinese people were inovators and were not just simple traders. Thanks to the Silk road Europeans could get silk and spices and fireworks and gunpowder and numerous other inventions that were not found anywhere else in the world. If it hadn't been for Silk road Europe would've been much less developed.
The Articles of Confederation were unsuccessful because they lacked a strong unitary structure for the United States. The writers feared the power of a strong federal government. In order to prevent strong federal control, the states were privileged as the arbiters of government in the new nation. The supremacy of the states limited the power of the federal government. These limitations proved problematic in constructing a strong nation in the post- revolutionary period.
Argentina is considered the Most European in South America.
