How does one package and sell confidence in the stability of a nation riven by civil strife? This was the question that loomed before the Philadelphia financial house of Jay Cooke & Company,&8239;entrusted&8239;by the US government with an unprecedented sale of bonds to finance the Union war effort in the early days of the American Civil War.&8239;How the government and its agents marketed these bonds revealed a version of the war the public...