In the past 200 years the big trend in education has been expansion in the number of people being educated and in the amount of education. While timing varied somewhat throughout the industrializing world, in the US primary education became universal during the 1800's, public high schools became widespread between 1900 and 1950, and college enrollment greatly increased in the 1960's and 70's. In contrast, the Methods of Education and content of education didn't change all that much, other than increasing adoption of industrial-scale techniques, such as the replacement of single-room schools by large buildings with age-segregated classrooms.
While this expansion was clearly influenced by the needs and opportunities of the industrial revolution, national ideology and international comparisons also played a big role. The universal primary education and the research university model adopted by the US during the 1800's was largely based on German practices. See History of Education in the United States.
It is very important to keep in mind this rapid expansion of the educational system. Two major consequences:
21st century skills
Family income has become more correlated over time with parental education levels, parents’ own cognitive skills, family structure, and neighborhood socioeconomic characteristics.