    Sontoneo 1: What was the name of the  imperialistic policy in China?    Sentence § 2: Although imperialist   practices have existed for thousands of  years, the term ‘Age of Imperialism"  generally refers to the activities of  European powers from the early 18th  century through to the middle of the 20th  century, for example, the ‘The Great  Game" in Persian lands. the "Scramble for  Africa" and the "Open Door Policy" in  China.