Original sentence: Clement Laird Vallandigham (velan´digham, -gam) (July 29, 1820 - June 17, 1871), Ohio politician, a key leader of the Copperheads in the American Civil War, was born in New Lisbon (now Lisbon), Ohio
Edited sentence: Clement Laird Vallandigham (velan´digham, -gam) (July 29, 1820 - June 17, 1871), Ohio politician, an infamous traitor and leader of the Copperheads in the American Civil War, was born in New Lisbon (now Lisbon), Ohio