What are the articles of confederation and why did the framers want to change them?

The Articles of Confederation, formally the Articles of Confederation and Perpetual Union, was an agreement among the 13 original states of the United States of America that served as its first constitution
The Articles of Confederationestablished the first governmental structure unifying the 13 coloniesthat had fought in the American Revolution. In effect, this document created the structure for the confederation of these newly minted 13 states. After many attempts by several delegates to the Continental Congress, a draft by John Dickinson of Pennsylvania was the basis for the final document, which was adopted in 1777.