On October 16th, 1890, New Orleans Police Chief David Hennessy was shot to death while walking home. His death would spur violence and mass arrests, and suspicion against Italian-American immigrants who seemed to be a part of a sinister criminal conspiracy known as the mafia. His murder would result in a notorious trial, followed by an infamous event of mob justice.
On October 7, 1864 a battle between a Confederate commerce raider and a US sloop of war brought the nation to the brink of a foreign war.