In 1830 he started an abolitionist paper, The Liberator. In 1832 he helped form the New England Antislavery Society. When the Civil War broke out, he continued to blast the Constitution as a pro-slavery document.
Answer:
they felt that they (the europeans) were superior
Germany was hit particularly hard during the American Great Depression. The reason being was that America was a major source of loans for Germany's reparations after WW1. When Hitler came to power as the Chancellor of Germany, he incited the entire country into a nationalistic rage and establishing a totalitarian single party state, with the support of the Nazi Party.