Charles Sumner (1811–1874) was an [[abolitionist]] U.S. Senator from Massachusetts who drove to eradicate slavery and who became a [[Radical Republican]] after the [[Civil War]]. A founder of the [[Republican Party]], Sumner served Massachusetts in the U.S. Senate for 23 years. | Charles Sumner (1811–1874) was an [[abolitionist]] U.S. Senator from Massachusetts who drove to eradicate slavery and who became a [[Radical Republican]] after the [[Civil War]]. A founder of the [[Republican Party]], Sumner served Massachusetts in the U.S. Senate for 23 years. |