A thread follows one event or historical theme across the archive, wherever and whenever it appears. Pick a tab to read one; they are in the order they are filed on the timeline. Pulling a thread opens up a narrowed timeline view filtered to every year that thread touches.
The bloodiest battle of the American Civil War and a decisive turning point toward an ultimate Union victory over the Confederacy. Gettysburg marked the end of Robert E. Lee's advanced northward, and in its aftermath, President Abraham Lincoln would preside over the battlefield to give the Gettysburg Address, one of the most enduring speeches in American history.
The abolition movement in the United States was a long-running one that steadily gained greater amounts of political sway, especially over the course of the 19th century. Following the groundwork laid by the Emancipation Proclamation in 1863 which legally freed all slaves held in Confederate states, slavery in the United States was formally abolished at the end of 1865 with the passing of the 13th Amendment to the Constitution.