The answer is human resources
The U.S. manage to expand its territory across the continent through treaty agreement and territory purchase which is evident in Louisiana purchase.
In 1803, the U.S. was able to extend in double to its original territories through the Louisiana Purchase of 1803.
- Louisiana Purchase entails acquisition of the Louisiana territory from Napoleonic France in the year 1803.
- The Purchase of the territory brought into U.S. about 828,000 square miles of territory, thereby, doubling the size of the country.
In conclusion, the U.S. manage to expand its territory across the continent through treaty agreement and territory purchase which is evident in Louisiana purchase.
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<u>The Jews were one of the most important cultures that began in Mesopotamia. They came from one of the Sumerian cultures and branched off to form their own Jewish culture around 2000 BC.</u>
The application of scientific knowledge for practical purposes, especially in industry.
I would say 30,000 cause all the next developments were from the 1860's forward and that is when huge growth happened, after 1860.
