What are the choices to choose from?
Slavery was a tragic but crucial element in the success of imperialism because slave labor was used in many European colonies to farm, build, and serve the colonists.
Both were huge into the business industry, Carnegie was a leader in the steel industry as well.
When Europeans arrived in America in the 1600s, the frontiers began moving west. As they continued spreading their land occupation, American Indians were moved west. In 1889, the government transferred white colonists the Indian land, breaking the promise, as these lands had been promised to Indians. The Indians tried to take over those lands to no avail. In 1890 the Bureau of the Census stated there were no frontiers within the country.
The soldiers families, the people who lived in an area where a batter took place, etc. People who sold items to the armies