Question: In which year was this corporation incorporated by John E. Snyder and others that funds the private philanthropic (pre-K through 12) boarding school in Hershey, Pennsylvania?

Context articles: Hershey Trust Company
Dangote Foundation
Piney Woods Country Life School
Milton Hershey School
The Kiski School
Vishwajyoti Higher Secondary School
Bagsværd Kostskole og Gymnasium
Fay School
Concho Indian Boarding School
Country Day School, Guanacaste

The Hershey Trust Company is a United States corporation incorporated on April 28, 1905, by Milton S. Hershey, Harry Lebkicher and John E. Snyder.
 The company is majority owner of The Hershey Company and sole private owner of Hershey Entertainment and Resorts Company and administrator of the 2,000 student Milton Hershey School.
 It manages about $12.3 billion in charitable funds.
Dangote Foundation is the private philanthropic foundation of Aliko Dangote, established with a mission to enhance opportunities for social change through strategic investments that improve health and well being, promote quality education, and broaden economic empowerment opportunities.
 Dangote Foundation was incorporated in 1993 as a charity in Lagos, Nigeria.
 The Foundation has now become the largest private foundation in sub Saharan Africa, with the largest endowment by a single African donor.
 The Foundation has contributed over $250 million in charitable funds to several causes in Nigeria and Africa over the past four years.The activities of the Foundation revolve around the four pillars of health, economic empowerment, education and disaster relief.
The Piney Woods Country Life School (or The Piney Woods School) is a co-educational independent historically African-American boarding school for grades 9-12 in Piney Woods, unincorporated Rankin County, Mississippi.
 It is 21 mi south of Jackson.
 It is one of four remaining historically African-American boarding schools in the United States.
 It is currently the largest African-American boarding school, as well as being the second oldest continually operating African-American boarding school.
The Milton Hershey School is a private philanthropic (pre-K through 12) boarding school in Hershey, Pennsylvania.
 Originally named the Hershey Industrial School, the institution was founded and funded by chocolate industrialist Milton Snavely Hershey and his wife, Catherine Sweeney Hershey.
 The school was originally established for impoverished, healthy, Caucasian, male orphans, while today it serves students of various backgrounds.
 The Milton Hershey School Trust, which funds the school, owns controlling interest in The Hershey Company and owns the Hershey Entertainment and Resorts Company (HE&R) which oversees many of the area hotels along with a theme park called Hersheypark.
 With over twelve billion dollars in assets,} the Milton Hershey School is one of the wealthiest schools in the world.
 The school is overseen by a Board of Managers.
The Kiski School, formally the Kiskiminetas Springs School after the Kiskiminetas River, is a private, all-male boarding school physically located in Loyalhanna Township, Pennsylvania, though it has a Saltsburg, Pennsylvania mailing address.
 It is about 40 miles (64 km) east of Pittsburgh, Pennsylvania, and is the oldest remaining non-military all-male boarding school in the United States.
Vishwajyoti Higher Secondary School was initially established in the year 2051 B.S (1994 A.D) by a group of highly experienced professional in the field of education at Pragatinagar – 3, Nawalparasi, Nepal, in collaboration with Nawal English Boarding School, established at Rajhar V.D.C. in the year 2039 B.S (1982 A.D) to promote it from Primary Level to Secondary Level and was run under the name of Nawal English Boarding School (NEBS) upto 2056 B.S (1999 A.D).
 NEBS was later merged into Vishwa Jyoti English Boarding School in the year 2057 B.S (2000 A.D).
 In the year 2064 B.S (2007 A.D) the school upgraded itself to the Higher Secondary Level, affiliated to the Higher Secondary Education Board (H.S.E.B.) and started running classes in the science and management stream.
official website
Bagsværd Kostskole og Gymnasium (Eng: 'Bagsværd Boarding School and Gymnasium'), usually referred to among students, teachers etc. as simply BK, is a private day school, gymnasium, and boarding school situated in Bagsværd, a suburb of Copenhagen.
 The vast majority of the 800 pupils and students at BK commute to school every day; the boarding school (Haraldsgave, lit.
 "Harald's Gift", commonly known as Haga) only houses up to 60 students.
Fay School is an independent, coeducational day and boarding school, located on a 66 acre campus some 25 mi from Boston in Southborough, Massachusetts, and is the oldest junior boarding school in the United States.
 It has 475 students enrolled from Pre-kindergarten through grade 9; the boarding program (grades 7–9) enrolls 120 students from throughout the United States and more than 19 foreign countries.
 Fay opened its Primary School (Pre-K to Grade Two) in 2010 and moved its 6th grade into the Lower School program (now 3rd to 6th) in the 2012–13 school year.
Concho Indian Boarding School (also known as the Cheyenne-Arapaho Boarding School at Concho or Concho Indian School and home to the Concho Demonstration School) was a boarding school for members of the Cheyenne and Arapaho Tribes and later opened to other Native American students.
 It existed from 1909 to 1983.
 It was located in central Oklahoma, approximately 1 mile south of Concho, Oklahoma and 4 miles north of El Reno, Oklahoma.
 The name of the town and school is the Spanish word for "shell" and was named for the Indian agent, Charles E. Shell.
Country Day School, Guanacaste (CDS) is a private, United States-accredited, boarding school located between the Flamingo Beach and Tamarindo Beach in Brasilito, Guanacaste, Costa Rica.
 Inspired by the Country Day School movement, it was founded as an English-speaking school in 1963.
 The school serves students in grades pre-K to twelfth grade.
 In 2002, the school added a boarding program for grades 8-12.
 The school is owned and operated by the board of educators, making it a non-profit institution.