The Federalist is widely considered to be one of the most influential political writings in the early United States. Consisting of eighty-five essays in total, the first seventy-seven essays were originally published in New York newspapers between October 1787 and April 1788, and the final eight appeared in the first collected edition of The Federalist in 1788, although they were later republished in New York newspapers as well. The Federalist was written collectively by Alexander Hamilton, James Madison, and John Jay to promote the ratification of the newly drafted Constitution. In keeping with the conventions of 18th-century public political debate, The Federalist was published under the pseudonym “Publius” to present its arguments to the public in anonymous terms, focusing attention on the content of the essays rather than the personal views or personalities of the authors. Although Hamilton, Madison, and Jay would not be formally identified as the authors of The Federalist until the publication of a notice in The Port-Folio on 14 November 1807, their collective authorship was widely known by the 1790s, and their reputations as respected statesmen and innovative political thinkers brought considerable attention and credibility to their arguments. Through the voice of Publius, The Federalist explains and defends the core principles and structure of the new government outlined within the Constitution, while also identifying the flaws and weaknesses of the Articles of Confederation. In doing so, The Federalist provides substantive critical and philosophical discussions of federal governance and its relationship to the principles of plural sovereignty, national unity, republican representation, citizenship, national security, commercial interests, and the separation of powers, all of which had a profound influence, not just on the ratification debates, but also on subsequent interpretations of constitutional language and authority, from the founding period to the present. While scholars have endlessly debated the political, historical, philosophical, literary, and cultural impact of The Federalist, these essays continue to serve as foundational texts for studying the politics and culture of the early United States, as well as contemporary interpretations and revisions of constitutional principles in legal, legislative, and cultural spheres.