What two new social classes emerged during the industrial revolution? industrial class middle class urban working class lower class

At the beginning of the war, why was hitler allowed to continue his aggression without resistance from other european countries

Was the battle of iwo jima over after us troops raised the flag on mt. suribachi?

Take another look at the population pyramid for france in 1950. notice the disparity between the male and female populations in the 55 to 70 year-old age group. what historical event could account for this disparity?