Which idea streagthen the accepptance of slavery

The dehumanization of blacks was an extremely necessary aspect of slavery. The belief that they were inferior rationalized their bondage. The Enlightenment idea that reason would solve problems did not apply to slaves, as there was virtually no way to escape and it was heavily discouraged.

where are the statements?

world war i began in 1914, after the assassination of archduke franz ferdinand, and lasted until 1918. during the conflict, germany, austria-hungary, bulgaria and the ottoman empire (the central powers) fought against great britain, france, russia, italy, romania, japan and the united states (the allied powers). to new military technologies and the horrors of trench warfare, world war i saw unprecedented levels of carnage and destruction. by the time the war was over and the allied powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.

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