Generally speaking, advanced farming techniques allowed for a surplus of food, which led to the emergence of a "artisan" class--since for the first time people were "freed" to engage in other actives besides gathering food.
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Answer:
On May 17, 1954. ruling that racial segregation in public schools violated the Equal Protection Clause of the 14th Amendment.
Explanation:
I just know sorry lol I can't give you an explanation really. If you absolutely need one I could, but I don't think so.