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The school became a part of the expansion of higher education for blacks in the former Confederate states following the American Civil War , with many schools founded by the northern American Missionary Association .
 organization: American Missionary Association
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: American Missionary Association