The 39th Congress of the United States convened from 1865 to 1867, following the end of the Civil War. It was notable for addressing the challenges of Reconstruction, particularly the reintegration of the Southern states into the Union and the rights of newly freed African Americans. During this Congress, significant legislation was passed, including the Civil Rights Act of 1866 and the 14th Amendment, which aimed to secure citizenship and equal protection under the law for all individuals. The 39th Congress played a crucial role in shaping the post-war landscape of the United States.