<span>The director of the United States census declared the frontier closed in 1893. There was no reason for the frontier to continue since their was not much more migrating or settling to be done. Most of the uncharted land that had been bought during the Louisiana Purchase had been settled in by United States citizens.</span>
Great Britain and the original 13 British colonies in North America<span>. </span>
The answer is D. President Kennedy
National elections
Start of Great Recession
Economic Stimulus Act of 2008
American Recovery and Reinvestment Act of 2009
End of Great Recession