Final answer:
The first written constitution in America was called the Articles of Confederation. It was replaced by the Constitution in 1787.
Step-by-step explanation:
The name of the first written constitution in America was the Articles of Confederation. It was drafted in 1776-1777 and ratified by the thirteen colonies in 1781. However, the Articles of Confederation had several shortcomings, such as not giving the federal government the power to impose taxes or control foreign policy. As a result, the Constitution was written in 1787 to replace the Articles of Confederation and strengthen the central government's authority.