Political instability the treaty of Versailles is what ended the world war I Germany was faced to pay reparations, take the blame and have there army shrunken and they lost their territory
Without the use of machinery many Americans will be employed to do various jobs. Their unemployment rate during that time will decrease. Another consideration is that there is a need for expertise in handling heavy machinery. One must be learned enough not only to drive heavy machinery but also to operate it and maintain its good condition.
Anne Stuart in the same year