Fortismere School (simply referred to as Fortismere) is an 11–18 mixed, foundation secondary school and sixth form in Muswell Hill, Greater London, England. In 2016, it was ranked by The Sunday Times as the 12th best comprehensive school in the country. In its most recent Ofsted inspection, it was rated "Outstanding" and is the highest-performing comprehensive school in the borough. History Private schools Tollington Park College, a private educational establishment for boys, was founded by William Brown in 1879 in Tollington Park, London N4. Rapid population growth around Muswell Hill created the need for a new school. Campbell Brown, the founder's son, established Tollington Boys School in Tetherdown, Muswell Hill in 1901. Brown then opened Tollington High School for Girls in nearby Collingwood Avenue in 1910. In 1919 both schools were purchased by the local education authority. Aside from the senior management, the two schools operated independently. Grammar schools After World War II, this became a state grammar school and the attached preparatory school became Tetherdown Primary School (this moved from the site in 1958 when it exchanged premises with the girls' grammar school). In 1958 the current building was erected and Tollington High School for Girls and Tollington Grammar School for Boys merged to become Tollington Grammar School (co-ed). In 1955, William Grimshaw Secondary Modern School (named after a local councillor) opened on an adjoining site in Creighton Avenue, taking the senior classes from Coldfall Council School. It offered extended classes from 1961. Creighton Comprehensive School With the introduction of comprehensive education in Haringey in 1967, Tollington Grammar School and William Grimshaw Secondary Modern School were merged to form Creighton School. Charles Loades, head of William Grimshaw since 1958, became head, remaining until his retirement in 1974. In the early 1970s, Creighton School became the centrepiece of a Labour Party educational experiment. Situated in the middle-class, largely white suburb of Muswell Hill it was decided to integrate a large number of Afro-Caribbean and other ethnic minority children into the school from distant parts of the borough in an attempt to maximise education choice and social interaction – a policy based heavily on the United States' then-current system of desegregation busing. In 1975, before this new intake had worked through the school, around one-third of the Sixth Form was either a first-generation immigrant, or had a surname of Cypriot or Asian origin. The head who was charged with overseeing this