Founded in 1945, the University of Calgary was originally part of the University of Alberta and became an independent university in 1966. In just over 50 years, the University of Calgary has rapidly developed into one of Canada's most important research universities. The main campus of the University of Calgary covers an area of approximately 213 hectares. There are 24,296 full-time undergraduate students and 4,340 graduate students, including more than 6,700 international students. The school library has a collection of more than 1.8 million volumes, as well as original manuscripts of many Canadian writers and complete architectural samples of some well-known architects. The University of Calgary has 1,815 full-time teachers and 503 researchers, including 77 Canadian research chairs, ranking sixth among Canadian universities. The top ten scientific research strengths of Canadian universities. It is not only a member of nine national excellent scientific research centers, but also a national education center with excellent qualifications. It is in a leading position in many fields such as medicine, education, construction petrochemical industry, remote sensing surveying and mapping, and its international tourism education and research center is recognized by the World Tourism Organization , is the only research center outside of Europe. The 1988 Winter Olympics were held at the University Skating Rink.