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Primary
Gilder Lehrman Institute of American History

Gilder Lehrman Institute: The New Nation, 1783 1815

For Students 9th - 10th
[Free Registration/Login Required] This website documents the United States through its struggles to become a new nation. Site includes primary source documents for the Articles of Confederation, US Constitutional Convention, and George...
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Khan Academy

Khan Academy: Ratification of the Us Constitution

For Students 9th - 10th
This resource from Khan Academy provides practice questions over the ratification of the US Constitution. These questions are intended for students taking high school or college level American Government and Civics courses, including the...