I believe the 3 events where, The Lincoln-Douglas Debate, The john brown raid and the Dred Scott Verdict. Browns raid made abolitionist (against slavery) look as if they where the bad guys, Lincoln-Douglas Made each state decide if they wanted to be a slave or no slave state and the Dred Scott made slavery 'legal' anywhere in the U.S.A. Dred Scott was 1857, Lincoln-Douglas was 1858 and John Brown Raid was 1859!
One way that world war 1 effected the Turkish leaders was that D they lost control of territory in the middle east but preserved Turkeys political independence.
Answer:
Lots of people living close together.
Explanation: