sentences:  Credits (then called "vekttall") were issued based on a nominal study of 20 credits per year (or 10 per semester).Traditionally there were only four universities in Norway, located in Oslo (since 1811), Bergen (1948), Trondheim (1968) and Tromsø (1972).Since 2005 any college offering five master programs and four doctoral programs can title themselves a university, leading to the Norwegian University of Life Sciences, Stavanger University College and Agder University College converting to universities.