The Harvard Summer School, founded in 1871, is the oldest academic summer session in the United States. While Colorado College Summer School is younger, it makes a distinction in that it has been continuous whereas Harvard has not. Each summer more than 500 students arrive at the Harvard University campus in Cambridge, Massachusetts, United States, from across the U.S. and nearly 80 foreign countries. Students enroll in the program to study for seven weeks with faculty from Harvard University ;The Summer School offers approximately 200 daytime and evening classes in over forty disciplines in the liberal arts, sciences, and engineering. While there are degree candidates from Harvard's other schools who attend the Summer School, such as Harvard College, Harvard GSAS, and Harvard Extension School, the Summer School is largely an open-enrollment school and does not offer any degrees. This is thought to be a large contributing factor to the historically prominent international enrollment. The summer school also consists of an Institute for English Language Programs (IEL), the Ukrainian Summer Institute, and an extensive study abroad program. The Summer School is one of the principal programs within the Harvard Division of Continuing Education and is part of the Faculty of Arts and Sciences.