Which 19th-century Massachusetts legislator is known as the 'Father of American Public Education' for his advocacy of free, universal, non-sectarian schooling?

• A Henry Barnard
• B John Dewey
• C Booker T. Washington
• D Horace Mann ✓

Horace Mann served as the first Secretary of the Massachusetts Board of Education and championed the Common School Movement that established the template for public education.