This document discusses the three eras of education: the Apprenticeship Era, the Universal Schooling Era, and the emerging Life Long Learning Era. In the Apprenticeship Era, education was the responsibility of parents and focused on practical skills learning. The Universal Schooling Era shifted responsibility to the state, standardized education through graded schools and textbooks, and aimed for universal literacy. Now, the Life Long Learning Era is developing due to technology and focuses on continuous learning throughout life through diverse means.