What event led to the establishment of the monroe doctrine?

Which of the following farming methods the inca farm the hillsides a) slash- and- burn b) crop rotation c) irrigation canalsd) dam construction

An important accomplishment of the chinese during the han dynasty was the a. invention of paper. b. production of bronze tools. c. construction of the great wall. d. building of royal tombs.

President reagan believed the spread of communism in latin america was directly due to? a.guerrilla fighters. b.contras. c.terrorists. d.leftists.