15 h 17 m, 1 ene 1837 año - Horace Mann begins revival of the common schools.
Descripción:
Assumed the position of Secretary of the State Board of Education.
Developed centralized public schooling.
Source: The History of Special Education: From Isolation to Intergration
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15 h 17 m, 1 ene 1837 año
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~ 187 years ago