Why would World War II bring the US out of a depression?

Anthony johnson, an african who arrived in virginia in 1621, a. learned the powhatan language and became a translator for governor thomas dale. b. owned slaves. c. translated the king james version of the holy bible into indian and african dialects. d. was the first slave who purchased his freedom with earnings from growing tobacco.

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Brainliestttme : ) what economic changes occurred after world war ii? ( economic boom, baby boom, g.i. bill of rights)