In which Harvard dormitory was Facebook created?

Facebook was created in Kirkland House, a Harvard undergraduate residential dormitory.

In early 2004, Mark Zuckerberg worked on the project from his room in Kirkland House while he was a student at Harvard. The site, originally called TheFacebook, launched on February 4, 2004, and initially connected students within Harvard before expanding to other universities.

Kirkland House is one of Harvard College's residential Houses and was established in 1931. The dormitory detail is part of Facebook's origin story, but it does not mean the entire company was built there. Zuckerberg and the other early founders developed the service in the broader Harvard student environment, and the project soon moved beyond campus.

A common mix-up is choosing another Harvard House, such as Winthrop or Adams. The answer refers to where Zuckerberg was living when Facebook began, not to a corporate headquarters or a university department.