Education reform lead by Horace Mann was a major reform movement in the early 1800's. He helped create mandatory public education for all in the United States.
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The answer is search and destroy
Even though slavery was abolished, that did not mean the white people would stop treating the black people with a lack of respect. Thus lead to segregation some years later, and then resulted in the civil right movement.
The Kalahari Desert comprises two-thirds of Botswana's land