is administratively part of the Department of History and Art History, the department considered by itself would have ranked at number thirteen on the nationwide list. In 2019, Robertson left the center and was succeeded as director by T. Mills Kelly. Open educational resources The center's first projects were aimed at K-12 teachers and students and this remains a significant strand of work done at the center to the present day. With funding from the National Endowment for the Humanities (NEH), Rosenzweig continued work on the Who Built America? CD-ROMs before he transitioned to the then-new world wide web. Early online projects included Liberty, Equality, Fraternity, a history of the French Revolution; History Matters, for use in American history survey courses; and World History Sources and Women in World History for use in world history survey courses. Other high profile NEH-funded projects include T. Mills Kelly's Making the History of 1989, created in collaboration with the German Historical Institute, and Kelly Schrum's Children and Youth in History, created in collaboration with the University of Missouri-Kansas City. In 2002, the center began to receive a series of grants from the US Department of Education's Teaching American History program, including a five year, $7 million grant to build an American history clearinghouse website in 2007. It also worked directly with school systems and cultural heritage institutes to create pedagogical materials ranging from lesson plans to digital archives of primary sources. One such project on historical thinking, Object of History, was created in partnership with the Smithsonian Institution’s National Museum of American History. Its recent educational projects have focused on re-developing its open educational resources about world history. One of its newest projects, in conjunction with the National Museum of American Diplomacy, involves the creation of three historical diplomacy classroom simulations for secondary education instructors. CHNM is also involved with educational outreach with teachers in Virginia school districts. In keeping with the center's commitment to democratize history, all web-based projects are open educational resources. Digital collecting Following the September 11, 2001 attacks, the center in partnership with the American Social History Project at the City University of New York organized the September 11 Digital Archive with funding from the Alfred P. Sloan Foundation. With the September 11 Digital Archive, CHNM and ASHP utilized electronic media to collect, preserve, and present the past, with a digital repository of material including more than 150,000 first-hand