As more white men were enlisted in the armed forces, African Americans
and women needed to take over the jobs of those men so that America
would be able to manufacture tanks, airplanes, ships, guns, submarines,
jeeps, etc. This gave them the ability to obtain jobs after the war and
helped make equal work opportunities for people of all races and sexes
in the 50s and 60s
Hello! Your answer would be 'establishment' .
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Don’t go to the links there hacks
The answer is:
The major industrial cities became overcrowded as workers from rural areas moved there.
and
Because of the steady increase in food production, the population nearly doubled between 1800 and 1850.