Harvard University is the oldest institution of higher education in the United States, established in 1636. It was named after John Harvard, who donated his library and half his estate to the school upon his death in 1638. Harvard has educated many famous people including 8 US presidents, 7 Supreme Court justices, Bill Gates, Mark Zuckerberg, Natalie Portman, and Barack Obama. Students live in dorms or houses on campus and take courses across Harvard's 12 degree-granting schools. The school has over 20,000 students and a vast library collection. Admission is highly selective and based on academic performance as well as extracurricular activities. Financial aid is available, with over 60% of undergraduates receiving