Article VII required nine of thirteen states to ratify the Constitution through specially elected conventions. Delaware ratified first on December 7, 1787. Supporters Hamilton, Madison, and Jay published 85 Federalist Papers defending the proposed framework, while opponents demanded protections for individual liberties. The Massachusetts Compromise of February 1788 broke the deadlock by promising immediate amendments — later becoming the Bill of Rights. New Hampshire's ratification on June 21, 1788, met the nine-state threshold, formally establishing the new constitutional government.