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Historical Research Library

Discover the people, events, and key documents that shaped the Founding Era. 

Singers and dancers focused on Chris Jackson playing George Washington

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A North West View of the State House in Philadelphia taken 1778, from C.W. Peale (Library of Congress)

Antifederalist No. 1, 1787

An early critique of the proposed Constitution, arguing the dangers of a centralized government and advocating state sovereignty
Key Document
The Looking Glass for 1787, Amos Doolittle, 1787, Library of Congress.

Antifederalist No. 9, 1787

A critique of the proposed Constitution, expressing concerns over centralized power and the potential threat of an elite ruling class
Key Document
The Federalist: A Collection of Essays, Written in Favour of the New Constitution, 1788 (The Gilder Lehrman Institute of American History)

Federalist No. 84, 1788

One of 85 essays advocating the ratification of the Constitution, focusing on Antifederalist concerns about the need for a Bill of Rights
Key Document
Detail from A New Map of North America, 1780. (The Gilder Lehrman Institute of American History)

Antifederalist No. 46, 1788

An expression of Antifederalists’ concerns over federal power and the potential for tyranny in the proposed US Constitution
Key Document
The Federalist: A Collection of Essays, Written in Favour of the New Constitution, 1788 (The Gilder Lehrman Institute of American History)

Federalist No. 51, 1788

One of 85 essays advocating the ratification of the Constitution, providing insight into the different branches of government, particularly the importance of checks and balances and the separation of powers
Key Document
Detail from the Bill of Rights. (National Archives)

Bill of Rights, 1791

The first ten amendments to the United States Constitution—hard-fought additions that protect some individual liberties and limit government power
Key Document