The Federalist (later known as The Federalist Papers) is a collection of 85 articles and essays written under the pseudonym "Publius" by Alexander Hamilton, James Madison, and John Jay to promote the ratification of the United States Constitution. Seventy-seven of these essays were published serially in the Independent Journal, the New York Packet, and The Daily Advertiser between October 1787 and August 1788. A two-volume compilation of these and eight others was published in 1788 as The Federalist: A Collection of Essays, Written in Favour of the New Constitution, as Agreed upon by the Federal Convention, September 17, 1787. The collection was commonly known as The Federalist until the name The Federalist Papers emerged in the 20th century.