What event took place in Philadelphia in 1787?

The event that took place in Philadelphia in 1787 was the Constitutional Convention. This pivotal gathering was held from May to September with the aim of addressing the weaknesses of the Articles of Confederation, which had proven ineffective in governing the newly independent states. Delegates from twelve of the thirteen states convened to draft a new constitution that would provide a stronger federal government while balancing the powers among various branches.

The outcome of the convention was the United States Constitution, which established the framework for the government and included a system of checks and balances and a division of powers that are fundamental to the U.S. political system today. The convention's discussions and decisions were critical in shaping the governance of the nation.

In contrast, the signing of the Declaration of Independence occurred earlier, in 1776, marking the colonies' declaration of freedom from British rule. The ratification of the Constitution followed the convention, taking place in 1788, as various states voted to accept or reject the document. The First Continental Congress was held in 1774, serving as a response to British policies prior to the outbreak of the Revolutionary War. Each of these events is significant, but the Constitutional Convention specifically defines the year 1787 in Philadelphia.