Lines of contention

["Politics and government" "Political culture" "United States Civil War 1861-1865" "Pictorial American wit and humor" "Caricatures and cartoons" "History" "History" "History - Military / War" "History: American" "General" "United States - Civil War" "History / United States / Civil War Period (1850-1877)" "1849-1877" "19th century" "American wit and humor Pictorial" "Caricatures and cartoons" "Political culture" "Politics and government" "United States" "American wit and humor pictorial" "United states politics and government humor caricatures etc." "United states history civil war 1861-1865 humor caricatures etc."]