1787

Constitutional Convention: The Constitutional Convention was held in Philadelphia in 1787 with delegates from each state coming together to discuss revising or replacing the Articles of Confederation.

Founding Fathers: These were key figures who played significant roles in drafting and ratifying both the Declaration of Independence and later, the US Constitution.

Ratification: Refers to formally approving or adopting something like an agreement or document. In this context, it relates to states officially accepting the newly drafted US Constitution.