The term Copperhead is used for the first time in writing by the Cincinnati Gazette. It was used to indicate people who would not admit they were Southern sympathizers, and "peace at any price" Democrats. People who did admit Southern sympathies were called "dough-heads." The paper used the term when refering to members of the Indiana Democratic Convention
After blowing explosives at the end of a 586-foot tunnel which in turn ignited four magazines, Union troops advance to the Crater at Petersburg. After 4 hours, though, they are forced to withdraw.