Final answer:
The first form of government in the United States was defined under the Articles of Confederation, which was later replaced by the U.S. Constitution due to the weak central structure of the former.
Step-by-step explanation:
The first form of government in the United States was organized under the Articles of Confederation. Drafted from 1776-1777 during the American Revolution, the Articles were ratified by the 13 American colonies in 1781. The Articles formed a confederacy among the sovereign states, granting Congress the authority to make alliances and coin money, but left it unable to impose taxes or control foreign policy. While it laid the groundwork for the nation, the weak central government led to the drafting of the U.S. Constitution in 1787. With its adoption in 1789, the Constitution superseded the Articles, providing stronger federal rule and balance of powers.
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