How did the United States acquire the land that Lewis and Clark explored?

Who were some of the first people to use prostheses?

Brainliestttme : ) what caused the first opium war? chinese confiscation and destruction of british opium chinese support for the boxer rebellion british efforts to increase opium prices british attempts to force china to accept opium as payment

What was the most important consequence of the large-scale ecological changes in africa two hundred thousand years ago?