What happened at the Constitutional Convention?

The correct answer reflects a significant historical event where the foundation of the United States government was established. At the Constitutional Convention, which took place in Philadelphia in 1787, delegates from various states convened to address the weaknesses of the Articles of Confederation. Instead of merely amending the existing framework, the attendees decided to draft a new governing document, leading to the creation of the U.S. Constitution. This document outlined the structure of the government, delineating the powers of the legislative, executive, and judicial branches, and introduced a system of checks and balances.

While the Bill of Rights was indeed a crucial addition to the Constitution, it was not part of the original drafting during the convention itself; instead, it was proposed later to address concerns about individual liberties. The Declaration of Independence was established prior to the convention, specifically in 1776, as a statement of the colonies' intention to separate from British rule. George Washington was later elected as the first President of the United States but not as a direct outcome of the Constitutional Convention. Thus, the drafting of the Constitution defines the primary and critical outcome of the convention, making it the right answer.