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Answer:
In the study of history as an academic discipline, a primary source is an artifact, document, diary, manuscript, autobiography, recording, or any other source of information that was created at the time under study. It serves as an original source of information about the topic.
Explanation:
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Mostly, people believed that economic stability and the cooperation between the countries, including economic dependency, would be the best promise of peace. Because of this, international organisations, such as European Union and the United Nations were established.