University College London, which operates as UCL,is a public research university in London, United Kingdom. It is a member institution of the federal University of London, and is the second-largest university in the United Kingdom by total enrolment and the largest by postgraduate enrolment. Established in 1826, as London University, by founders inspired by the radical ideas of Jeremy Bentham, UCL was the first university institution to be established in London, and the first in England to be entirely secular and to admit students regardless of their religion. UCL also makes contested claims to being the third-oldest university in England and the first to admit women. In 1836, UCL became one of the two founding colleges of the University of London, which was granted a royal charter in the same year. It has grown through mergers, including with the Institute of Ophthalmology (in 1995), the Institute of Neurology (in 1997), the Royal Free Hospital Medical School (in 1998), the Eastman Dental Institute (in 1999), the School of Slavonic and East European Studies (in 1999), the School of Pharmacy (in 2012) and the Institute of Education (in 2014)