“Maryland was a slave state with considerable support for the Confederacy at the onset of the war. But Maryland held for the Union and sent thousands of soldiers to defend Washington. What happened next provides a “positive” example of the effects of cognitive dissonance: for Maryland whites to fight a war against slave owners while allowing slavery within their own state created a tension that demanded resolution. In 1864 the increasingly persuasive abolitionists in Maryland brought the issue to a vote. The tally went narrowly against emancipation until the large number of absentee ballots were counted. By an enormous margin, these ballots were for freedom. Who cast most absentee ballots in 1864 in Maryland? Soldiers and sailors, of course.”