Answer:
Columbian Exchange
Explanation:
The exchange of goods and services between the Native Americans and the Europeans was called the Columbian Exchange.
The article of confederation was failed because national government was powerless.
What is Articles of Confederation?
The thirteen states fought in American Revolution create an arrangement known as article of confederation effected for eight years from 1781 to 1789. The states retain its rules, control and liberty.
The states were not supporting national government financially and some states were made agreements with foreign governments, resulting weak and helpless national government.
Following reasons which fail the article of confederation.
• Allowed only one vote to each state
• Tax cannot be collected from states
• No control on trades and cannot enforce any act
• The court, legal system and combine military force was not available
• Each state have its own money, economy was not stable
These reasons were pointed out and states want changes in Articles of Confederation.
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D. Cuneiform
The Sumerians developed cuneiform, which was a system of writing in which writing was inscribed on clay tablets with a stylus. This is one of the earliest known systems of writing.
They were upright and really did not believe in true personal liberty.
