The University of Oxford is a collegiate research university located in Oxford, England, United Kingdom. While having no known date of foundation, there is evidence of teaching as far back as 1096, making it the oldest university in the English-speaking world and the world's second-oldest surviving university. It grew rapidly from 1167 when Henry II banned English students from attending the University of Paris. The university is made up of a variety of institutions, including 38 constituent colleges and a full range of academic departments which are organised into four divisions. All the colleges are self-governing institutions as part of the university, each controlling its own membership and with its own internal structure and activities. Being a city university, it does not have a main campus; instead, all the buildings and facilities are scattered throughout the city centre. Most undergraduate teaching at Oxford is organised around weekly tutorials at the self-governing colleges and halls, supported by classes, lectures and laboratory work provided by university faculties and departments.
"The most important motivation for the research work that resulted in the relational model was the objective of providing a sharp and clear boundary between the logical and physical aspects of database management."