38th United States Congress
The 38th United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met in Washington, D.C., from March 4, 1863, to March 4, 1865, during the last two years of President Abraham Lincoln's first term in office.
Source: Wikipedia — 38th United States Congress (CC BY-SA 4.0)