Roman, Greek, Egyptian, and Middle Eastern artifacts. Between 1972 and 1974, the museum was involved in the excavation of the archaeological site of Dibsi Faraj in northern Syria. The Kelsey Museum re-opened November 1, 2009 after a renovation and expansion. The collection of the University of Michigan Museum of Art include nearly 19,000 objects that span cultures, eras, and media and include European, American, Middle Eastern, Asian, and African art, as well as changing exhibits. The Museum of Art re-opened in 2009 after a three-year renovation and expansion. UMMA presents special exhibitions and diverse educational programs featuring the visual, performing, film and literary arts that contextualize the gallery experience. The University of Michigan Museum of Natural History began in the mid-19th century and expanded greatly with the donation of 60,000 specimens by Joseph Beal Steere in the 1870s. The building also houses three research museums: the Museum of Anthropology, Museum of Paleontology. Today, the collections are primarily housed and displayed in the Ruthven Museums Building which was completed in 1928. Notable alumni In addition to the late U.S. president Gerald Ford, the university is, associated with thirty-four Pulitzer Prize winners, twenty-seven Rhodes Scholars, one Mitchell Scholar, and nine Nobel laureates. , the university had almost 500,000 living alumni. More than 250 Michigan graduates have served as legislators as either a United States Senator (47 graduates) or as a Congressional representative (over 215 graduates), including former House Majority Leader Dick Gephardt and U.S. Representative Justin Amash, who represented Michigan's Third Congressional District. Mike Duggan, Mayor of Detroit, earned his bachelor's degree and J.D. degree at Michigan, while the former Michigan Governor Rick Snyder earned his bachelor, M.B.A., and J.D. degrees from Michigan. Former Secretary of Housing and Urban Development Ben Carson received his medical degree from the U-M medical school. Thomas E. Dewey, another Michigan alumnus, was the Governor of New York from 1943 to 1954 and was the Republican Party's presidential nominee in the 1944 and 1948 presidential elections. The 13th President of Pakistan, Arif Alvi, completed his master's degree in prosthodontics in 1975. U-M's contributions to aeronautics include aircraft designer Clarence "Kelly" Johnson of Lockheed Skunk Works fame, Lockheed president Willis Hawkins, and several astronauts including the all-U-M crews of both Gemini 4 and Apollo 15. Numerous U-M graduates contributed greatly to the field of computer science, including Claude Shannon (who made major contributions to the mathematics of information