After Confederates fired on Fort Sumter on April 12, 1861, President Abraham Lincoln called for 75,000 volunteers to restore order in South Carolina. This action pushed Upper South states like North Carolina and Virginia to secede and join the Confederacy. The National Park Service’s website on Fort Sumter provides a good place to start and learn more about this event. You can find historic images and modern day pictures as well as information about their education exhibit. Teachers will want to look at the curriculum material and teachers guide. In addition, the National Park Service has put together a variety of documents and essays that provide more background information on Fort Sumter. Another interesting site to check out is Tulane University’s “Crisis at Fort Sumter,” which provides a detailed timeline of what happened regarding Fort Sumter between December 1860 and April 1861. The timeline is divided into several different sections, such as “Dilemmas of Compromise” and “Final Orders.” House Divided also has some material on the Fort Sumter major topic page, including historic images and a bibliography. You will also find links to profiles of several of the individuals who were involved, such as Major Robert Anderson and Secretary of State William Henry Seward. Be sure to check out the “Documents” tab for President Abraham Lincoln’s letters to General Winfield Scott on March 9, 1861 and to Major Robert Anderson on May 1, 1861.