Czar Nicholas II and his wife. After Revolution of 1905 he failed to solve Russia's basic political, economic and social problems, this sparked eruptions. March 1917 the first of two revolutions toppled the Romanov dynasty and started more radical changes.
Bloodiest War in American History: Not the Civil War -- World War Two. Although more American died in the Civil War, more Americans were killed in WW2. It's a pedantic technicality perhaps, but the Civil War was America's deadliest war, World War II its bloodiest.
1 Sept. 17, 1862, Battle of Antietam [Bloodiest calendar day on American soil, probably 4,300 killed that day.]. 2  Livermore, Numbers and Losses in the Civil War: 2,108 US + 2,700 CS [= 4,808]. 3  NPS. 4  KIA: 2100 USA + 1550 CSA = 3,650 killed in action on both sides.