Casualty numbers in the US Civil War were similar to casualties in the Napoleonic Era. Historians often compare these wars in terms of logistics, tactics, weapons and casualties. As examples, major US Civil battles with high casualties include the following:Antietam: 22,000 in a space of 12 hours;Second Bull Run: 24,000 in two days;Chancellorsville: 30,000 in four days:Gettysburg: 43,000 in three days;Atlanta Campaign: 19,000; andOverland Campaign: 55,000Note: These are examples for the purpose of comparisons to the Napoleonic Era.Large Napoleonic Era battles:1859 Solferino: 40,000 in twelve hours;1812 Borodino: 75,000 in twelve hours; and1813 Leipzig: 127,000 in four days.These set of figures are presented to display the fact that casualties in both eras were frequently similar.