What invention of the early 1920s helped the economy improve? Why?

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asked Dec 14, 2017 178k views

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Sunnyone · Answer 1 · 2017-12-19T03:17:55+0000

One of the most important inventions of the early 1920s helped the economy improve was the "automobile," since this greatly increased the speed and efficiency with which people could do work.

What invention of the early 1920s helped the economy improve? Why?

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