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This course, offered by Yale University and taught by Professor David Blight, explores the causes, course and consequences of the American Civil War from the 1840s to 1877. This course runs 27 episodes with each lecture being at least an hour or more long. Lectures 21-26 deal with the period of Reconstruction.
The entire series can be found on HERE. The episode embedded below is Lecture 21 titled "Andrew Johnson and the Radicals: A Contest over the Meaning of Reconstruction", the first of the five lectures that deal particularly with Reconstruction.