The state adopted its constitution in April 1777, creating a strong executive and strict separation of powers. It strongly influenced the federal constitution a decade later. Debate over the federal constitution in 1787 led to formation of the groups known as Federalists—mainly "downstaters" (those who lived in or near New York City) who supported a strong national government—and Antifederalists—mainly upstaters (those who lived to the city's north and west) who opposed large national institutions. In 1787, Alexander Hamilton, a leading Federalist from New York and signatory to the Constitution, wrote the first essay of the "Federalist Papers". He published and wrote most of the series in New York City newspapers in support of the proposed United States Constitution. Antifederalists were not swayed by the arguments, but the state ratified it in 1788.