(Latin: "Dioecesis Petropolitana in Insula Longa" ) comprises the territory of Nassau and Suffolk counties (regionally known as Long Island) in New York state, USA; although Fishers Island is part of Suffolk County, it is included in the Diocese of Norwich, Connecticut.
 Founded in 1957, this diocese was created from territory that once belonged to the Diocese of Brooklyn.
 It is the sixth-largest Catholic diocese in the United States, currently serving approximately 1.5 million people in 134 parishes.
 The diocese is named for the village where its cathedral, St. Agnes Cathedral, is located, Rockville Centre in Nassau County.
 The fifth and current bishop is John Barres.
St. Agnes Cathedral is a Christian church located in Kyoto, Japan, and is the diocesan Cathedral of the Diocese of Kyoto, which comprises all the Anglican-Episcopal churches and other facilities in Fukui, Ishikawa, Kyoto, and Toyama Prefectures.
St. Agnes Cathedral is a Roman Catholic cathedral in Rockville Centre, New York, on Long Island.
 It is the seat of the Diocese of Rockville Centre.
 The Most Reverend John Oliver Barres is the ordinary bishop of the Diocese and pastor of the Cathedral parish.
 The Saint Agnes Cathedral School is on campus with the cathedral.
St. Agnes High School is a girls school and junior college located on Clare Road, Byculla in Mumbai, India.
 It is managed by the religious followers of the Convent of Jesus and Mary, affiliated to the Archdiocesan board of Education.
 This school is under the patronage of St.Agnes, after whom it is named.
 The school prepares students for S.S.C. examinations conducted by the Maharashtra State Board of Secondary and Higher Secondary Education.
To make for more effective management, the school is divided into four house under the patronage of St. Matthew(Red), St. John(Yellow), St. Mark(Blue)and St. Luke(Green).
 Similarly, the primary section is divided under the patronage of St. Agnes(Red), St. Goretti(Blue), St.Theresa(Yellow) and St. Joan(Green).
St. Agnes Cathedral School, otherwise known as The St. Agnes School, is a prestigious private co-educational Catholic country day school located in Rockville Centre, New York for grades kindergarten through eighth grade.
 It was founded in 1917 as St. Agnes Elementary School by Monsignor Peter Quealy.
St. Agnes Kouying Tsao Catholic Church (Traditional Chinese: 天主教聖曹桂英堂), formerly known as Blessed Agnes Kouying Tsao Catholic Mission, was founded in 1992 by Rev. Fr.
 Nicola Ruggiero, an Italian missionary preaching in Hong Kong.
 St. Agnes was built in response to the growing religious demands of Chinese Christian immigrants flooding into the Markham area from places like Hong Kong and Mainland China.
 On October 1, 2000, Pope John Paul II canonized St. Agnes Kouying Tsao and the Parish was then renamed Saint Agnes Kouying Tsao Catholic Church.
St. Agnes Cathedral is a Catholic cathedral in Springfield, Missouri, United States.
 Along with the Cathedral of St. Mary of the Annunciation in Cape Girardeau, Missouri it is the seat of the Diocese of Springfield-Cape Girardeau.
St. Stephen's & St. Agnes School (SSSAS) is an independent Episcopal coed private college preparatory school in Alexandria, Virginia.
 The school was created from the 1991 merger of St. Agnes School (a girls school founded in 1924) with St. Stephen's School (a boys school founded in 1944).
 The school consists of three campuses within a 1.5-mile radius.
 The Lower School, grades JK-5, is located on Fontaine Street; the Middle School, grades 6-8, is located on Braddock Road; and the Upper School, grades 9-12, is located on St. Stephen's Road.
St. Agnes is a neogothic Catholic church in Neustadt-Nord, Cologne, Germany.
 It was consecrated in 1902 and is the second-largest church in Cologne after the Cologne cathedral.
 St. Agnes is 80 m long, 40 m wide and occupies an area of 2155 m2 .
 The tower has a height of 61 m .
Siena College was a private, Catholic college located in Memphis, Tennessee.
 It was established by Dominican nuns in 1922 as St. Agnes College, the first Catholic women's college in the Diocese of Nashville and in the Memphis metro area.
 Initially, the campus housed a Kindergarten through twelfth grade girls school and the college.
 It was the first college in Memphis to offer adult evening courses.
 In 1939, the Saint Agnes Academy moved to a new campus (where it remains), and the name of St. Agnes College was changed to Siena College.
 The college eventually was moved to its own new campus on Poplar Avenue in 1953 where it was known for excellence in education until it closed in 1972.

Question: In what year was the school that is located at St. Agnes Cathedral founded?
Answer: 1917