Comenius
Comenius was the first person who made pedagogy embark on the road of independent development, the representative of the independent stage of pedagogy and the founder of the independent discipline of pedagogy.
Herbart
Herbart is the representative of traditional pedagogy and the founder of scientific pedagogy, which marks the formation of "normative pedagogy". His ideas are novel, so they are modern. Compared with Dewey, his thought is traditional.
Dewey
Dewey is the representative and spokesman of modern education.