Lehigh University is a private, co-educational university located in Bethlehem, Pennsylvania, in the Lehigh Valley region of the United States. It was established in 1865 by Asa Packer as a four-year technical school, but has grown to include studies in a wide variety of disciplines. As of 2010, the university comprises 4,781 undergraduate students, 2,270 graduate students, 666 professors, and a staff of 1,255. The university has four colleges: the P.C. Rossin College of Engineering and Applied Science, the College of Arts and Sciences, the College of Business and Economics, and the College of Education. While the College of Arts and Sciences is the largest college today, home to roughly 40% percent of the university's students, the university is historically known for engineering and business. The university offers a variety of degrees, including Bachelor of Arts, Bachelor of Science, Master of Arts, Master of Science, Master of Business Administration, Master of Engineering, Master of Education, and Doctor of Philosophy. Asa Packer named his university 'Lehigh' after his other passion, the railroad, despite suggestions from some to call it 'Packer University'.