Was Wounded Knee the largest mass shooting in the U.S.? (The Indians shot first, by the way.) Wounded Knee, whether right or wrong, was a military action. If we count military actions on U.S. soil, the largest mass killing was at Gettysburg, Pennsylvania, during the War Between the States. Approximately 7,058 individuals died. The scene was so horrendous that an exact count was never verified.
Ah, history Nazis. Aren’t we as bad a Grammar Nazis?