Opened in 1908, the University of California, Davis campus is the largest in area of the 10 campuses in the UC system and the third largest in student population. The almost 40,000 students who attend UC Davis pursue a full range of undergraduate and graduate studies, as well as professional programs in law, business management, medicine, and engineering. Twenty-four of the undergraduate programs at UC Davis recently ranked among the top 10 in the nation, and the campus stands among the top 20 US universities in research funding. Davis undergraduates persist and graduate at the highest rates among UC campuses. The UC Davis Shields Library is ranked among the top research libraries in North America and contains more than 10 million volumes.