Take a tour around the oldest university in the United States Harvard University, founded in 1636, is the United States' oldest university. Over the years it has graduated some of the most brilliant minds in the world. Nearly 7,000 undergraduates and nearly 15,000 graduate and professional students attend the university. As you'll see by taking this tour, Harvard has a long history of "firsts." This guide attempts to serve as a walking tour through the history of the many buildings within Harvard Yard. When possible, historical photos have been used to illustrate the changes in the Yard over the years. Although it doesn't cover the full extent of the much larger university, this tour will give you a better understanding of its rich history. By the end you'll understand why this Ivy League school has a reputation as one of the most prestigious universities in the world.