The Dumbarton Oaks Research Library and Collection is an international center for scholarship, providing resources for study and publishing scholarly works in Byzantine, Pre-Columbian, and Garden and Landscape Studies. Begun as a private collection by Mildred and Robert Woods Bliss in 1920, and given to Harvard University in 1940, the library and collections include art objects, artifacts, manuscripts, and rare books. The house and collections are currently undergoing renovations and are closed, but the garden remains open to the public.