The document summarizes the historical development of curriculum in three eras: the Evolutionary Era from 1647-1800 which focused on religious education; the Modern Era from 1800-early 1900s which saw expansion of curriculum influenced by European philosophers and the development of common schools; and the Post Modern Era from the 1900s characterized by a focus on education for all populations and increased use of technology. It also outlines some influential curriculum theorists like Bobbitt, Charters, Kilpatrick, and Tyler and their perspectives.