Many former slaves still were unedumercated and needed to find jobs this lead to a legal form of work known as share cropping (tending to crops for a portion of the crop or a low wage pay)
It helped bring a quick victory to the Allies.
With the surge of fresh troops, equipment & supplies, they were able to defeat the already battle-weary & tired Central Power troops. This led to a quick defeat for the Central Power
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Because of Medicaid and Medicare, it was the administration of "Lyndon Johnson" that was seen as making great strides in health care, since Johnson wanted to improve the lives of average Americans.
The earliest ancestors of humans lived in Africa