What were the benefits of gaining the louisiana territory

How might the first nations have reacted when they saw that the europeans were moving onto their lands and disrupting their way of life? (this was when the europeans came to canada and tried to claim land to themselves)

6. why did louis xvi call a meeting of the estates-general in 1789? how long had it been since such a meeting had been called?

How did the industrial revolution give an advantage to industrialized european nations over non-industriallized nations?