Cotton gin 1 eli whitney 2. sewing machine peter cooper 3. steamboat james oliver 4. tom thumb steam locomotive jethro wood 5. embargo act of 1807 elias howe 6. mechanical reaper cyrus mccormick 7. steel plow robert fulton 8. iron plow thomas jefferson

germany's government did not have enough money to pay its debts, so it began printing more money, which caused economic problems. germany did not pay off its wwi debts until 2010. germany was also responsible for paying reparations after world war ii.

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