1. Abraham Lincoln was the 16th president who helped lead the country during the Civil War. He gave two of his most famous speeches at Gettysburg in 1863 and his Second Inaugural Address in 1865.
2. Ulysses S. Grant was a Union general who achieved early victories at Fort Donelson and Vicksburg, breaking Confederate control. Despite criticism, Lincoln strongly supported Grant.
3. William T. Sherman is most famous for his "March to the Sea" in 1864 where he destroyed Confederate property across Georgia, crippling their ability to wage war.