The cotton, tobacco, and other crops were shipped to their destination via means of transport like ships and railways.
During the first half of the 19th century, more than half of all American exports were cotton. The cotton market made it possible for America to take out international loans.
To seek more revenue and after fulfilling their self needs countries export additional crops to different countries who lack resources and help in improving the economy of the country and seek growth.
Earlier roads were not developed that much so ships and railroads are considered appropriate for exporting goods from one place to another. This means of transport is cost-effectively and safely delivered commodities.
Learn more about transport, here:
#SPJ2
Decleared independence from england.