The Revolutionary War involved the West Indies. They are islands became an essential channel of gunpowder and military supplies provided by the French and Dutch for the state militias and the Continental army
Technology is probably the answer that you need. Other answers such as internet, cell phones, and airplanes are suitable answers as well.
The Louisiana Purchase was negotiated by Robert Livingston for Jefferson.
I hope this helps!!
Jamestown started on December 6th, 1606