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ExplThe Aryans believed each person was born into a specific varna, or social class.
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A defensive wall or other reinforcement built to strengthen a place against attack.
DescriptionLiberty ships were a class of cargo ship built in the United States during World War II. Though British in concept, the design was adapted by the United States for its simple, low-cost construction. Mass-produced on an unprecedented scale, the Liberty ship came to symbolize U.S. wartime industrial output.
