“Up to our own day American history has been in a large degree the history of the colonization of the Great West. The existence of an area of free land, its continuous recession, and the advance of American settlement westward, explain American development.” Has BeensExistenceLandDevelopmentDegreesAreasWestAmerican HistoryRecessionsSettlementColonization Author:Frederick Jackson Turner
“America has been another name for opportunity.” Has BeensAmericaOpportunityNames Book:The Frontier in American History Source: The Frontier in American History
