St Wilfrid's Church, Halton-on-Lune St Wilfrid's Church, Halton-on-Lune St Wilfrid's Church is an Anglican church in Halton-on-Lune, a village in the English county of Lancashire. It is an active parish church in the Diocese of Blackburn and the archdeaconry of Lancaster. Halton may have been the site of an ancient Anglo-Saxon minster. Of the current structure, the tower dates from the 16th century and the remainder was built 1876–77 by Paley and Austin. The church is recorded in the National Heritage List for England as a designated Grade II listed building. At the time of the Norman conquest of England in 1066, Halton was
Lune of Hippocrates which the arc "AEB" lies. Consequently, the smaller circle has half the area of the larger circle, and therefore the quarter circle AFBOA is equal in area to the semicircle AEBDA. Subtracting the crescent-shaped area AFBDA from the quarter circle gives triangle ABO and subtracting the same crescent from the semicircle gives the lune. Since the triangle and lune are both formed by subtracting equal areas from equal area, they are themselves equal in area. Using a similar proof to the one above, Alhazen showed that two lunes, formed on the two sides of a right triangle, whose outer boundaries