Answer:
Slavery played the central role during the American Civil War. The primary catalyst for secession was slavery, especially Southern political leaders' resistance to attempts by Northern antislavery political forces to block the expansion of slavery into the western territories.
They were soldiers and had been slaves before
Gulliver has come to love the Houyhnhnms, their society, and their way of living
Christianity was the main religion in Europe. Jew were murdered because Christians were afraid Jews would spread their teachings.
If Jews spread their teachings, Christianity would lose supporters.
Christianity and Judaism were enemies.
Hope my answer helps :)