The Great Wall is a fortificated East-to-West line which historically has delimited the Chinese Northern border. Its primary purpouse was to defend the Chinese territory against the invasions and quick raids organized by the nomadic people from the Eurasian Steppe lands, located more to the North.
But rather than as a fixed border, it should be regarded as a transition zone which establishes a distinction between two different lifestyles, even nowadays: the farmer regions in the South with sedentary ways of life and the pasture lands in the North, where its inhabitants have nomadic lifestyles and work mainly in animal husbandry activities.
None of the state highlighted were member of the union in 1793
Louisiana joined in the date 30th April 1812, Florida joined in 3rd march 1845,Wisconsin joined 29 may 1848, and Iowa joined 28 December 1846.
Option 3: The exact cause of the Tuscarora
yes because they have helped create many inventions that we use to this day lol