What was the original purpose of the constitutional convention held in Philadelphia in 1787?

The original purpose of the Constitutional Convention held in Philadelphia in 1787 was to address the weaknesses of the Articles of Confederation, which had created a loose confederation of states with a weak central government. Delegates aimed to revise the existing framework to improve governance, ensure economic stability, and provide for a stronger national defense. However, the discussions ultimately led to the drafting of a new Constitution, establishing a more robust federal system.