I would argue that oil came at the same time. Harold Ickes was trying to make sure we had enough while the war was still raging. [0]. [0] - https://www.e-educ

I would argue that oil came at the same time. Harold Ickes was trying to make sure we had enough while the war was still raging. [0]. [0] - https://www.e-education.psu.edu/egee120/node/254 https://www.e-education.psu.edu/egee120/node/254