Shortly after the end of the Constitutional Convention, a national debate began about whether or not to ratify the Constitution. Newspapers nationwide published essays both for and against ratification Those who supported ratification of the Constitution were known as Federalists.

The Federalist Papers were a series of 85 essays written by Alexander Hamilton, John Jay, and James Madison, that appeared in New York newspapers, primarily, the Independent Journal and the New York Packet, between October of 1787 and August of 1788. Hamilton, Jay, and Madison did not sign their names to the essays; they chose to publish using assumed names such as Publius, which was a reference to a Roman consul, Publius Valerius Publicola. The essays urged New York delegates to ratify the Constitution. In 1788, the essays were published in a bound volume entitled the Federalist and eventually became known as the Federalist Papers.

Some people felt that the Constitution would give the central government too much power and would limit individual freedom. To address these fears, Hamilton, Jay, and Madison analyzed the Constitution in detail and outlined the built in checks and balances meant to divide power between the three branches of government and preserve the rights of the people and states.

Even though they did not play a significant role in New York's decision to ratify the Constitution, the Federalist Papers remain an important collection today because they offer insight into the intentions of key individuals who debated the elements of the Constitution.

To learn more, see the Federalist Papers site at the Library of Congress.