Explore a collection of images highlighting life during the Civil War. The Union Army Balloon Corps was established to observe enemy positions from above and piloted by aeronauts like Professor Thaddeus S. Lowe. A military telegraph corps was created to support the communications needed between officers on the battlefield and the president. More than a thousand operators sent and received more than a million messages during the war across 4,000 miles of telegraph wires. In prison camps, more than 400,000 soldiers were held, and 56,000 of them perished under confinement from disease, overcrowding, and other illness.