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UPVC WINDOWS ALYELSBURY

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Aylesbury is the county town of Buckinghamshire in south east England. In the 2001 census the Aylesbury Urban Area[1], which includes Bierton, Fairford Leys, Stoke Mandeville and Watermead, had a population of 69,021, which included 56,392 for the Aylesbury civil parish. Aylesbury is part of the London commuter belt. Contents [hide] * 1 History * 2 Modern Aylesbury * 3 Architecture * 4 Education * 5 Administration * 6 Trade and industry * 7 Transport o 7.1 Road o 7.2 Bus o 7.3 Rail o 7.4 Cycling Demonstration town * 8 Notable residents * 9 Popular culture * 10 Geography * 11 Twin towns * 12 Places of interest * 13 Gallery * 14 See also * 15 References * 16 External links [edit] History The town name is Anglo-Saxon, though excavations in the town centre in 1985 found an Iron Age hillfort dating from around 650BC. The town is sited on an outcrop of Portlandian limestone which accounts for its prominent position in the surrounding landscape, which is largely clay. Aylesbury was a major market town in Anglo-Saxon times, famous in addition as the burial place of Saint Osyth, whose shrine attracted pilgrims. The Early English parish church of St. Mary (with many later additions) may be built over the remains of a Saxon crypt. At the Conquest, the king took the manor of Aylesbury for himself, and it is listed as a royal manor in the Domesday Book, 1086. Market Square, Aylesbury. Market Square, Aylesbury. In 1450 a religious institution called the Guild of St Mary was founded in Aylesbury by John Kemp, Archbishop of York. Known popularly as the Guild of Our Lady it became a meeting place for local dignitaries and a hotbed of political intrigue. The Guild was influential in the final outcome of the Wars of the Roses. Its premises at the Chantry in Church Street, Aylesbury, are still there, though today the site is occupied mainly by almshouses. Aylesbury was declared the county town of Buckinghamshire in 1529 by King Henry VIII: Aylesbury Manor was among the many properties belonging to Thomas Boleyn the father of Anne Boleyn and it is rumoured that the change was made by the king in order to curry favour with the holders of the manor. (Previously the county town of Buckinghamshire was Buckingham).

History Polyvinyl chloride was accidentally discovered on at least two different occasions in the 19th century, first in 1835 by Henri Victor Regnault and in 1872 by Eugen Baumann. On both occasions, the polymer appeared as a white solid inside flasks of vinyl chloride that had been left exposed to sunlight. In the early 20th century, the Russian chemist Ivan Ostromislensky and Fritz Klatte of the German chemical company Griesheim-Elektron both attempted to use PVC (polyvinyl chloride) in commercial products, but difficulties in processing the rigid, sometimes brittle polymer blocked their efforts. In 1926, Waldo Semon and the B.F. Goodrich Company developed a method to plasticize PVC by blending it with various additives. The result was a more flexible and more easily-processed material that soon achieved widespread commercial use.

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