What's the difference between imperialism in the 16th-18th centuries and the new imperialism of the 19th and 20th centuries? help me plsss

Why did the us government remove native americans from the southeast in the 1830s

Why caused john quincy adams to write the monroe doctrine?

Which statement best describes standard oil in the late 1800s? standard oil controlled only a small number of the nation’s oil refineries. standard oil was a single business that operated in a small region. standard oil controlled only the means and methods of oil production. standard oil owned ninety percent of all oil refineries in the united states.