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KA's US history fellow Kim talks about the trials of Reconstruction, when federal troops attempted to enforce the Fourteenth and Fifteenth Amendments in the South. Watch the next lesson: Missed the previous lesson? US history on Khan Academy: From a mosquito-ridden backwater to the world's last remaining superpower, the United States of America is a nation with a rich history and a noble goal: government of the people, by the people, for the people. Its citizens' struggle to achieve that goal is a dramatic story stretching over hundreds of years. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at
