In July 1863, the gently rolling hills of Pennsylvania became the backdrop for one of the bloodiest conflicts in American history: the Battle of Gettysburg.
The United States was two years deep into the Civil War (1861-1865)—a conflict that would determine whether the country would forever be split in two.
Eleven Southern states had seceded from the Union starting in 1860 after Abraham Lincoln was elected president. They declared themselves the Confederate States of America. Most Northern states had already banned slavery, and the Southern states feared that Lincoln would end the practice nationwide. Many Southerners viewed slavery as essential to their rural economy, which included growing cotton and other crops.