Question: What comprehensive school was established on the island where Henborth is located?

full_context: Document 1: Saint Helena: St Helena has long been known for its high proportion of endemic birds and vascular plants. The highland areas contain most of the 400 endemic species recognised to date. Much of the island has been identified by BirdLife International as being important for bird conservation, especially the endemic Saint Helena plover or wirebird, and for seabirds breeding on the offshore islets and stacks, in the north-east and the south-west Important Bird Areas. On the basis of these endemics and an exceptional range of habitats, Saint Helena is on the United Kingdom's tentative list for future UNESCO World Heritage Sites.
Document 2: Comprehensive school: In these schools children could be selected on the basis of curriculum aptitude related to the school's specialism even though the schools do take quotas from each quartile of the attainment range to ensure they were not selective by attainment. A problem with this is whether the quotas should be taken from a normal distribution or from the specific distribution of attainment in the immediate catchment area. In the selective school system, which survives in several parts of the United Kingdom, admission is dependent on selection criteria, most commonly a cognitive test or tests. Although comprehensive schools were introduced to England and Wales in 1965, there are 164 selective grammar schools that are still in operation.[citation needed] (though this is a small number compared to approximately 3500 state secondary schools in England). Most comprehensives are secondary schools for children between the ages of 11 to 16, but in a few areas there are comprehensive middle schools, and in some places the secondary level is divided into two, for students aged 11 to 14 and those aged 14 to 18, roughly corresponding to the US middle school (or junior high school) and high school, respectively. With the advent of key stages in the National Curriculum some local authorities reverted from the Middle School system to 11–16 and 11–18 schools so that the transition between schools corresponds to the end of one key stage and the start of another.
Document 3: Comprehensive school: In Ireland comprehensive schools were an earlier model of state schools, introduced in the late 1960s and largely replaced by the secular community model of the 1970s. The comprehensive model generally incorporated older schools that were under Roman Catholic or Protestant ownership, and the various denominations still manage the school as patrons or trustees. The state owns the school property, which is vested in the trustees in perpetuity. The model was adopted to make state schools more acceptable to a largely conservative society of the time.
Document 4: Comprehensive school: The first comprehensives were set up after the Second World War. In 1946, for example, Walworth School was one of five 'experimental' comprehensive schools set up by the London County Council Another early comprehensive school was Holyhead County School in Anglesey in 1949. Other early examples of comprehensive schools included Woodlands Boys School in Coventry (opened in 1954) and Tividale Comprehensive School in Tipton.
Document 5: Comprehensive school: Comprehensive schools are primarily about providing an entitlement curriculum to all children, without selection whether due to financial considerations or attainment. A consequence of that is a wider ranging curriculum, including practical subjects such as design and technology and vocational learning, which were less common or non-existent in grammar schools. Providing post-16 education cost-effectively becomes more challenging for smaller comprehensive schools, because of the number of courses needed to cover a broader curriculum with comparatively fewer students. This is why schools have tended to get larger and also why many local authorities have organised secondary education into 11–16 schools, with the post-16 provision provided by Sixth Form colleges and Further Education Colleges. Comprehensive schools do not select their intake on the basis of academic achievement or aptitude, but there are demographic reasons why the attainment profiles of different schools vary considerably. In addition, government initiatives such as the City Technology Colleges and Specialist schools programmes have made the comprehensive ideal less certain.
Document 6: List of World Heritage Sites in the United Kingdom: There are 32 UNESCO World Heritage Sites in the United Kingdom and the British Overseas Territories. The UNESCO list contains one designated site in both England and Scotland (the Frontiers of the Roman Empire) plus eighteen exclusively in England, five in Scotland, three in Wales, one in Northern Ireland, and one in each of the overseas territories of Bermuda, Gibraltar, the Pitcairn Islands, and Saint Helena. The first sites in the UK to be inscribed on the World Heritage List were Giant's Causeway and Causeway Coast; Durham Castle and Cathedral; Ironbridge Gorge; Studley Royal Park including the Ruins of Fountains Abbey; Stonehenge, Avebury and Associated Sites; and the Castles and Town Walls of King Edward in Gwynedd in 1986. The latest site to be inscribed was the Jodrell Bank Observatory in England in July 2019.
Document 7: Comprehensive school: In 1970 Margaret Thatcher became Secretary of State for Education of the new Conservative government. She ended the compulsion on local authorities to convert, however, many local authorities were so far down the path that it would have been prohibitively expensive to attempt to reverse the process, and more comprehensive schools were established under Mrs Thatcher than any other education secretary.
Document 8: Raising of school leaving age in England and Wales: In 1944, Rab Butler introduced the Education Act 1944 which amongst other changes, including the introduction of the Tripartite System, included raising the school leaving age to 15. Although the act should have been brought into effect as from September 1939, it was not implemented because of the effects of World War II, but was eventually enforced from April 1947. The comprehensive school system has since replaced the Tripartite System brought in by this act across most of England. This act also recommended compulsory part - time education for all children until the age of 18, but was dropped, in similar fashion to the 1918 Act, to cut spending after World War II.
Document 9: Comprehensive school: Gibraltar opened its first comprehensive school in 1972. Between the ages of 12 and 16 two comprehensive schools cater for girls and boys separately. Students may also continue into the sixth form to complete their A-levels.
Document 10: Helsby hill fort: Helsby hill fort is an Iron Age hillfort overlooking the village of Helsby in Cheshire, northwest England. Helsby Hill has steep cliffs on the northern and western sides, providing a natural semicircular defence. Double rampart earthworks extend to the south and east to provide protection to those flanks. Two additional banks have been discovered enclosing a rock ledge on the cliff to the north side. Excavations last century revealed a wall composed of sand and rubble, revetted with stone to the back and front. The hill has a summit of 141 m AOD, and is a prominent landmark rising above the Cheshire Plain, with fine views overlooking the Mersey Estuary and into Wales. Much of the hill is owned and managed by the National Trust. The surrounding areas are well wooded to the southwest, northwest and northeast with farmland to the southeast. The hill fort is protected as a Scheduled Ancient Monument.
Document 11: Henborth: Henborth is a Site of Special Scientific Interest (or "SSSI") in Anglesey, North Wales. It has been designated as a Site of Special Scientific Interest since October 1989 in an attempt to protect its fragile geological elements. The site has an area of 10.96 hectares and is managed by Natural Resources Wales.
Document 12: List of World Heritage Sites in the United Kingdom: There are 31 UNESCO World Heritage Sites in the United Kingdom and the British Overseas Territories. The UNESCO list contains one designated site in both England and Scotland (the Frontiers of the Roman Empire) plus seventeen exclusively in England, five in Scotland, three in Wales, one in Northern Ireland, and one in each of the overseas territories of Bermuda, Gibraltar, the Pitcairn Islands, and Saint Helena. The first sites in the UK to be inscribed on the World Heritage List were Giant's Causeway and Causeway Coast; Durham Castle and Cathedral; Ironbridge Gorge; Studley Royal Park including the Ruins of Fountains Abbey; Stonehenge, Avebury and Associated Sites; and the Castles and Town Walls of King Edward in Gwynedd in 1986. The latest site to be inscribed was the Lake District in England in July 2017.
Document 13: List of Areas of Special Scientific Interest in Northern Ireland: This is a list of the Areas of Special Scientific Interest (ASSIs) in Northern Ireland, United Kingdom. In Northern Ireland the body responsible for designating ASSIs is the Northern Ireland Environment Agency - a division of the Department of Environment (DoE).
Document 14: Gwaii Haanas National Marine Conservation Area Reserve and Haida Heritage Site: Gwaii Haanas National Marine Conservation Area Reserve and Haida Heritage Site is a National Marine Conservation Area of Canada. It is located off the coast of the southernmost Haida Gwaii (formerly known as the Queen Charlotte Islands), 130 kilometres off the mainland of British Columbia. It is immediately adjacent to Gwaii Haanas National Park Reserve and Haida Heritage Site. The level of protection differs from that of the National Park Reserve, however, allowing sustainable use of some natural resources in the area. Gwaii Haanas National Marine Conservation Area Reserve, which covers 3,400 square kilometres, is "a primary feeding habitat" of the humpback whale (North Pacific population) protected by Canada’s Species at Risk Act (SARA).
Document 15: Comprehensive school: The largest expansion of comprehensive schools in 1965 resulted from a policy decision taken in 1965 by Anthony Crosland, Secretary of State for Education in the 1964–1970 Labour government. The policy decision was implemented by Circular 10/65, an instruction to local education authorities to plan for conversion. Students sat the 11+ examination in their last year of primary education and were sent to one of a secondary modern, secondary technical or grammar school depending on their perceived ability. Secondary technical schools were never widely implemented and for 20 years there was a virtual bipartite system which saw fierce competition for the available grammar school places, which varied between 15% and 25% of total secondary places, depending on location.[citation needed]
ground_truth: Holyhead County School
sub_queries: Henborth >> located in the administrative territorial entity Answer: Anglesey
What comprehensive school was established in Anglesey ? Answer: Holyhead County School