How many amendments have been made to the US Constitution?

Section 2. The Congress and the several states shall have concurrent power to enforce this article by appropriate legislation. Section 3. read more

Thirty-three amendments to the United States Constitution have been proposed by the United States Congress and sent to the states for ratification since the Constitution was put into operation on March 4, 1789. read more

There have been 17 amendments made to the US constitution after the first 10, which were included at the ratification of the original document. 11th: Makes states immune from suits from out-of-state citizens and foreigners not living within the state borders; lays the foundation for sovereign immunity. read more