What historical event directly led to the end of available frontier lands for settlement?
a) homestead act of 1862
b) 1849 gold rush
c) oklahoma land rush
d) railroad act of 1862

Write two letters to the editor describing a specific event from the cold war, such as the korean war or the vietnarm war. imagine you are writing the letters from the perspectivees of two world leaders who are on different sides of the conflict. each letters should explain the specific point of view of that person and use historical evidence to support any cliams.