Established in 1827, the University of Toronto is one of the strongest research and teaching faculties in North America, and is consistently ranked among the top 10 public universities in the world. With more than 86,000 students across three campuses (St. George, Mississauga and Scarborough) and over 550,000 alumni active in every region of the world, its influence is felt in every area of human endeavour. The University of Toronto offers more than 700 undergraduate programs, 222 Masters and Doctoral programs, and 59 professional graduate programs, and maintains over 19 million physical and 5 million electronic holdings in the library. It is home to the third largest library system in North America.