The University of London is a federal public research university in London, England, United Kingdom. The university was established by royal charter in 1836 as a degree-awarding examination board for students holding certificates from University College London, King's College London and "other such institutions, corporate or unincorporated, as shall be established for the purpose of Education, whether within the Metropolis or elsewhere within our United Kingdom". It is one of three institutions to have claimed the title of the third-oldest university in England. It moved to a federal structure with constituent colleges in 1900. It is now incorporated by its fourth (1863) royal charter and governed by the University of London Act 2018.