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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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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