The American community college originated in the early 20th century due to social forces such as industry growth, lengthened adolescence, and drive for social equality. The colleges were expected to solve various societal problems, including racial integration, unemployment, drug abuse, and more. Private junior colleges peaked in 1949 but declined over time, while public community colleges continued to grow. The development of community colleges was driven by ideas such as science-enhanced progress, individual mobility, and open access to diverse populations.