What is Open Door Policy?
'''The Open Door Policy''' was a policy between [[China]], the [[United States]] and several nations in Europe. It opened [[trade]] with China to each of these nations. Prior to that, China was a closed country. Europe was about to fight a war to open up China by force. This grew out of the Open Door Notes sent by United States Secretary of State [[John Hay]] to [[diplomat]]s in Europe. {{US-stub}} [[Category:19th century in the United States]] [[Category:19th century in China]]