2.1 Chief Counsel for the NAACP Legal Defense and Educational Fund.
2.2 Court of Appeals and Solicitor General.
2.3 U.S. Supreme Court.
They used inoculation for healthy people to gain immunity to the disease, however, they risked actually getting the disease and falling ill.
Four factors leading to the growing European tension included: devout nationalism useful negotiations growing imperialism building militarism abrasive German actions.!!!!! Hope it helps!!!! :))))
The end of ww1 I think because they are free to do what they want because the war is over