They used interchangeable parts. This made the mass production possible and caused it to happen.
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Kepler
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HistoryLee
Answer:
Why and how did the American's force the Japanese to trade with the United States? Pressured by congress, President Millard Fillmore sent Matthew C. Perry and a naval expedition to Tokyo to open Japan. ... He wanted to support peace and to increase trade among the nations in the Americas.
Explanation:
The answer would be : homage.
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Photon