Question: From what period were many buildings created with nave windows showing similar tracery? Passage 1:This is a list of Notre Dame Fighting Irish football head coaches. The Notre Dame Fighting Irish football team is the football team of the University of Notre Dame, located in South Bend, Indiana, United States. The team competes as an Independent at the NCAA Division I Football Bowl Subdivision level. Notre Dame has produced more All-Americans than any other Football Bowl Subdivision school. Additionally, seven Fighting Irish football players have won the Heisman Trophy. Notre Dame is one of only two Catholic universities that field a team in the Football Bowl Subdivision, the other being Boston College, and one of a handful of programs independent of a football conference. The team plays its home games on Notre Dame's campus at Notre Dame Stadium, also known as the "House that Rockne Built", which has a capacity of 80,795. The head coach is Brian Kelly.
 Passage 2:Despite this, Farr was discharged from hospital and sent back to the front with the 1st Battalion of the West Yorkshire Regiment, a part of the 6th Infantry Division, with which he fought in the Battle of the Somme. Farr reported himself to the medical station several times over the following months. In April 1916, he was kept at the medical station for a fortnight due to his state. On 22 July 1916 he spent the night at a medical station and was discharged for duty the following morning. On 17 September 1916 he again attempted to seek the help of a medical orderly, but was refused as he was not physically wounded and the aid station was dealing with a high number of battle casualties. Farr reported for duty at the transport lines at 8 P.M. that evening, but went missing shortly afterwards. Upon being found at 11 P.M., he refused to return to the front line. He was subsequently arrested for disobeying orders, and on 1 October 1916 tried by court martial at Ville-sur-Ancre. He had to defend himself against the formal accusation of 'misbehaving before the enemy in such a manner as to show cowardice'. The Divisional court martial, presided over by Lieutenant-Colonel Frederick Spring, the Commanding Officer of the 11th (Service) Battalion of the Essex Regiment, lasted 20 minutes, and questions have subsequently been raised about its competence. The hearing found Farr guilty and sentenced him to death. General Sir Douglas Haig, as the Commander-in-Chief of the British Expeditionary Force subsequently confirmed the execution order, and Farr was shot by a firing squad made up from men of his own regiment at 6.00 A.M. on 18 October 1916, near Carnoy on the Somme. His family have always argued that he was suffering from shell shock at the time.
 Passage 3:St Nicholas is constructed in flint, with some conglomerate and brick, and has limestone dressings. The roofs are tiled. Its plan consists of a nave, a chancel with a north vestry (previously a porch), and a west tower. The tower is wholly octagonal. In each face of the upper stage of the tower is a lancet, and there is another lancet on the west side at a lower level. The parapet is battlemented. The tower has a west doorway in Norman style, which has possibly been re-set from elsewhere in the church. It has scalloped capitals, and zig-zag decoration on the arch. Inside the upper part of the tower is a 17th-century dovecote lined with brick nesting boxes. On the south side, between the tower and the nave, is a brick stair turret. The nave windows have two lights with Decorated tracery. Between the windows on the south side is another Norman doorway, again with zig-zag decoration. The north and south walls of the chancel have two-light windows with Y-tracery, and three-light windows with Perpendicular tracery. The east window has five lights. The east gable is decorated with grotesque carvings, and above the east window is head-corbel and a blocked niche. The vestry has two-light north and south windows. In the north wall of the nave is an Early English doorway, with dog-tooth ornament. Around the church are stepped buttresses.

Output: 3