Communist Revolution took place in 1917.
Answer:
Explanation:
Primary also known as Primary sources in history include documents or artifacts created by a witness to or participant in an event. They can be firsthand testimony or evidence created during the time period that you are studying.
Primary sources may include diaries, letters, interviews, oral histories, photographs, newspaper articles, government documents, poems, novels, plays, and music. The collection and analysis of primary sources is central to historical research.
Note about primary sources: While there are many digital primary resources available, it is very important to remember that the majority of primary sources have not yet been digitized.
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The correct answer is the internment of Japanese-American citizens.
The United States government decided that Japanese-American citizens were a security threat and they put them into internment camps.