I think it is indoor plumbing
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At its height in 1919–1920, concerns over the effects of radical political agitation in American society and the alleged spread of communism and anarchism in the American labor movement fueled a general sense of concern
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advances in tool making technology led to advance in agriculture and farming revolutionized the world and set prehistoric humans on a course toward modernity inventions such as the plow helped in planting of seeds. no longer did human have to depend on the luck of the hunt.
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Equal Protection refers to the idea that a governmental body may not deny people equal protection of its governing laws. The governing body state must treat an individual in the same manner as others in similar conditions and circumstances.
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