From 1. 1492 to 1776, American education basically belonged to colonial education. 1. During this period, American primary education mainly imitated or transplanted British girls' schools and poor charity primary schools. 2. During this period, secondary education in the United States mainly imitated Latin law schools and literature schools in Britain. 3. American higher education in this period was a religious colonial university, modeled after Oxford University and Cambridge University. Second, during the awakening period of national education after the War of Independence, an educational system with American characteristics began to take shape. 1. One is the publicity of general education. 2. The second is the nationalization of higher education. 3. The third is the legalization of the education system. Third, in the process of establishing the national education system after the civil war, a complete education system with national characteristics was finally formed. 1. During this period, from the beginning, there was no unified national education leading organization in the United States, but the state was the highest authority leading education. 2. During this period, the United States established a complete educational leadership system. 3. During this period, American middle schools developed towards bourgeois democratization and modernization. 4. During this period, normal education in America also developed rapidly. During this period, American higher education also developed rapidly. On the one hand, its direction is to develop practicality and serve local economic construction. On the other hand, it is to strengthen academics. Fourth, the development period of modern education in the first half of the 20th century, 1. In the first half of the 20th century, although the United States maintained the leadership system of decentralized countries on the surface, in fact, the monopoly bourgeoisie strengthened its control over education through economic means. 2. In the first half of the 20th century, the United States continuously reformed the school system, shortened the number of years, expanded the scope of education, and increased the number of years of universal compulsory education. 3. In the first half of the 20th century, American normal education developed at a high level and through multiple channels, and vocational education was also widely valued. 4. In the first half of the 20th century, Dewey's pragmatic education theory and experiment came into being in line with the politics and economy of the United States when it entered the imperialist period.