Share This Article 1. The August 1, 1943 raid on this target during World War 2 was later recalled as “Black Sunday” by the US Army Air Force. Ploesti Schweinfurt Danzig Hamburg 2. On April 29, 1861 this state voted overwhelmingly to stay in the Union. Tennessee Kentucky Missouri Maryland 3. On June 21, 1877 six members of this Irish secret society were hanged in Pottsville, Pennsylvania. The Irish Republican Army The Molly Maguires The Fenians The Red Army Loading …