Question: Frieth is a village is located in a chalk escarpment that was designated as an Area of Outstanding Natural Beauty in what year? 
Context: The Haven, Aldeburgh is a 20.2 hectare Local Nature Reserve in Aldeburgh in Suffolk.  It is owned by Suffolk Coastal District Council and managed by the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.  It is in the Leiston - Aldeburgh Site of Special Scientific Interest and Suffolk Coast and Heaths Area of Outstanding Natural Beauty. The North Devon Coast was designated as an Area of Outstanding Natural Beauty in September 1959.  The AONB contributes to a family of protected landscapes in the Southwest of England and a total of 38% of the region is classified by the International Union for the Conservation of Nature as Category V Protected Landscapes.  The twelve Areas of Outstanding Natural Beauty extend to 30% of the region, twice the proportion covered by AONBs in England as a whole and a further two National Parks, Dartmoor and Exmoor, cover an addition 7%. The Chiltern Hills form a chalk escarpment in South East England.  They are known locally as "the Chilterns".  A large portion of the hills was designated officially as an Area of Outstanding Natural Beauty in 1965. An Area of Outstanding Natural Beauty (AONB) is an area of countryside in England, Wales or Northern Ireland which has been designated for conservation due to its significant landscape value.  Areas are designated in recognition of their national importance, by the relevant public body: Natural England, Natural Resources Wales, or the Northern Ireland Environment Agency.  In place of AONB, Scotland uses the similar national scenic area designation.  Areas of Outstanding Natural Beauty enjoy levels of protection from development similar to those of UK national parks, but unlike with national parks the responsible bodies do not have their own planning powers.  They also differ from national parks in their more limited opportunities for extensive outdoor recreation. The South Devon Area of Outstanding Natural Beauty (AONB) covers 337 square kilometres, including much of the South Hams area of Devon and the rugged coastline from Jennycliff to Elberry Cove near Brixham.  The purpose of an Area of Outstanding Natural Beauty is to conserve and enhance the area's natural beauty.  In South Devon this includes: undeveloped coastline, estuaries, geological and geomorphological features, expansive panoramic views, ancient agricultural field pattern, Devon banks, areas of high tranquility, dark night skies and natural nightscapes, historic features, green lanes, well known cultural associations, picturesque villages and hamlets.  South Devon AONB was formally designated in August 1960 under the National Parks and Access to the Countryside Act 1949 (South Devon AONB Management Plan 2009-14).  The highest point in the AONB is Blackdown Camp at 199 metres above sea level. Firle Escarpment is a Site of Special Scientific Interest at Firle in the South Downs Area of Outstanding Natural Beauty in the county of East Sussex, England.  The area is of biological interest due to its chalk grassland habitat supporting many species of flora, including the rare early spider orchid "Ophrys sphegodes". The Cornwall Area of Outstanding Natural Beauty covers 958 sqkm in Cornwall, England, UK; that is, about 27% of the total area of the county.  It comprises 12 separate areas, designated under the National Parks and Access to the Countryside Act 1949 for special landscape protection.  Of the areas, eleven cover stretches of coastline; the twelfth is Bodmin Moor.  The areas are together treated as a single Area of Outstanding Natural Beauty (AONB). The Isle of Wight Area of Outstanding Natural Beauty is an Area of Outstanding Natural Beauty (AONB) on the Isle of Wight, England's largest offshore island. Frieth is a village in the parish of Hambleden, in Buckinghamshire, England.  It lies on the top of "Frieth Hill", which is part of the chalk escarpments of the Chiltern Hills. Frieth Meadows is a 2.5 hectare Site of Special Scientific Interest in Frieth in Buckinghamshire.  It is in the Chilterns Area of Outstanding Natural Beauty.
Answer: 1965