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New territories - Louisiana purchase, florida and trans-Mississippi West
Abundant natural resources included
9 million in 1820 to 30 million in 1860
The population from 1820-1860 changed by what?
Improvement of roads and extensive canal building
Tracks and canals
In 1860 30,000 miles of what?
Capital investment from where
By 1850 half of America's foreign trade was passing through
67m in 1825 to 333m in 1860
Exports in mainly cotton tobacco and wheat rose in value from
In Lowell (North) Mills women worked how many hours a day?