Here's why:
* Advocating for Common Schools: Mann passionately argued for a system of free, publicly funded, and non-sectarian schools for all children, regardless of their background or social class. This was a radical idea at the time, as education was largely limited to the wealthy.
* Standardized Curriculum and Teacher Training: He believed in a standardized curriculum and the need for qualified, trained teachers. He established the first state-funded normal schools (teacher training institutions) to ensure that teachers were adequately prepared.
* Promoting Education as a Public Good: Mann saw education as a public good that would benefit society as a whole. He believed it was essential for a healthy democracy and for the economic well-being of the nation.
Through his tireless advocacy, writing, and work, Horace Mann played a pivotal role in shaping the American public education system as we know it today.