Civil War and Reconstruction, 1861–1877 - This section of the Library of Congress American Memory site provides excellent documents relating to the Reconstruction Era. Students can read primary sources pertaining to freedmen, the rebuilding of the South, and the problems of Reconstruction.

Finding Precedent: The Impeachment of Andrew Johnson - Interested in learning about the first president to be impeached? Harper’s Weekly has created an outstanding site full of the headlines and news of the trial of Andrew Johnson. Subtopics include the key issues of impeachment, impeachment arguments, biographies of the major participants, and Johnson’s presidency. An impeachment simulation is also available for student or classroom use.

The Freedmen’s Bureau Online - This site was created to assist in African American genealogy, but it also holds primary source documents related to the Freedmen’s Bureau.