The Federalist Papers are a series of 85 essays arguing in support of the United States Constitution. Alexander Hamilton, James Madison, and John Jay were the authors behind the pieces, and the three men wrote collectively under the name of Publius.
Seventy-seven of the essays were published as a series in The Independent Journal, The New York Packet, and The Daily Advertiser between October of 1787 and August 1788. They weren't originally known as the "Federalist Papers," but just "The Federalist." The final 8 were added in after.
Alexander Hamilton author of the Federalist Papers
Alexander Hamilton, Portrait by John Trumbull
At the time of publication, the authorship of the articles was a closely guarded secret. It wasn't until Hamilton's death in 1804 that a list crediting him as one of the authors became public. It claimed fully two-thirds of the essays for Hamilton. Many of these would be disputed by Madison later on, who had actually written a few of the articles attributed to Hamilton.
Once the Federal Convention sent the Constitution to the Confederation Congress in 1787, the document became the target of criticism from its opponents. Hamilton, a firm believer in the Constitution, wrote in Federalist No. 1 that the series would "endeavor to give a satisfactory answer to all the objections which shall have made their appearance, that may seem to have any claim to your attention."
Publius
Alexander Hamilton was the force behind the project, and was responsible for recruiting James Madison and John Jay to write with him as Publius. Two others were considered, Gouverneur Morris and William Duer. Morris rejected the offer, and Hamilton didn't like Duer's work. Even still, Duer managed to publish three articles in defense of the Constitution under the name Philo-Publius, or "Friend of Publius."
Hamilton chose "Publius" as the pseudonym under which the series would be written, in honor of the great Roman Publius Valerius Publicola. The original Publius is credited with being instrumental in the founding of the Roman Republic. Hamilton thought he would be again with the founding of the American Republic. He turned out to be right.
John Jay author of the Federalist Papers
John Jay, Portrait by Gilbert Stuart
John Jay was the author of five of the Federalist Papers. He would later serve as Chief Justice of the United States. Jay became ill after only contributed 4 essays, and was only able to write one more before the end of the project, which explains the large gap in time between them.
Jay's Contributions were Federalist: No. 2, No. 3, No. 4, No. 5, and No. 64.
James Madison author of the Federalist Papers
Portrait of James Madison
James Madison, Hamilton's major collaborator, later President of the United States and "Father of the Constitution." He wrote 29 of the Federalist Papers, although Madison himself, and many others since then, asserted that he had written more. A known error in Hamilton's list is that he incorrectly ascribed No. 54 to John Jay, when in fact Jay wrote No. 64, has provided some evidence for Madison's suggestion. Nearly all of the statistical studies show that the disputed papers were written by Madison, but as the writers themselves released no complete list, no one will ever know for sure.
Opposition to the Bill of Rights
The Federalist Papers, specifically Federalist No. 84, are notable for their opposition to what later became the United States Bill of Rights. Hamilton didn't support the addition of a Bill of Rights because he believed that the Constitution wasn't written to limit the people. It listed the powers of the government and left all that remained to the states and the people. Of course, this sentiment wasn't universal, and the United States not only got a Constitution, but a Bill of Rights too.
