How did the arrival of Irish and German immigrants impact antebellum politics in America? Irish and German immigrants joined with abolitionists to start new reform movements.

Anti-Catholic sentiment led to the creation of the Know-Nothing Party.

Irish and German women started the women's suffrage movement.

Religious toleration was added to the platform of the Republican Party.​

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.

explanation:

not sure might be he acquired the entire oregon territory from great britain