Most states don’t require that the Holocaust be taught. Even in states where it is mandated, the mandate usually just requires that it be taught, without specifics. Too many mandates are noble in principle, but ineffective in practice.
Hitler biographer Ian Kershaw says the 1930s bear few strong parallels with the war in Ukraine, but Russian President Vladimir Putin's aggression is a reminder of the inherent weaknesses of democracies in facing up to dictatorships.
Hitler's Strangest Decision: The declaration that lost World War 2 for the Nazis dailystar.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from dailystar.co.uk Daily Mail and Mail on Sunday newspapers.
Hitler emerges, without question now, as the person most responsible for the war, say historians. Find out what caused WW2 and when, how and why it started