Question: When was the girls school founded, which operated with the help of the charitable foundation, created from the estate of Robert Aske ?

Context articles: St. Stephen's &amp; St. Agnes School
Desert Valley Charitable Foundation
Haberdashers' Aske's School for Girls
Presley Charitable Foundation
Robert Aske (merchant)
Central Hindu Girls School
Sanghamitta Balika Vidyalaya
Private foundation
Aske baronets
Rich Eychaner Charitable Foundation

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.
The Desert Valley Charitable Foundation was founded in 1989.
 The Foundation was established by Prem Reddy, MD, a cardiologist and philanthropist with an initial gift of $1 million.
 Since that time, he has contributed over $5 million to the Foundation.
 The Desert Valley Charitable Foundation is a 501(c)(3) not-for-profit charitable organization that serves the health care needs of the High Desert communities in many ways, including a free public health library, a scholarship program for students in the health care field, and the support of other health care related charities.
Haberdashers' Aske's School for Girls is an independent day school in Elstree, Hertfordshire.
 It is often referred to as "Habs" (or "Habs Girls" to distinguish it from the neighbouring Haberdashers' Aske's Boys' School).
 The school was founded in 1875 by the Worshipful Company of Haberdashers, one of the Great Twelve Livery Companies of the City of London.
The Presley Charitable Foundation is a non-profit philanthropic organization created by Lisa Marie Presley in August 2007.
 The first endeavor of The Presley Charitable Foundation will be Presley Place-New Orleans; a transitional housing facility for homeless families.
 The foundation provides rent-free housing, child day care, career and financial counseling, family management guidance and other tools which help people learn how no longer be homeless again.
 Through this process they gain self-esteem and independence.
Robert Aske (24 February 1619 – 27 January 1689) was a merchant in the City of London.
 He is remembered primarily for the charitable foundation created from his estate, which nowadays operates two schools in Hertfordshire, Haberdashers' Aske's Boys' School and Haberdashers' Aske's School for Girls, and others elsewhere.
Central Hindu Girls School (Hindi: सेंट्रल हिन्दू गर्ल्स स्कूल ) (a.k.a. C.H.G.S and Girls School) is a girls secondary school (day school) in Gurubagh, Bhelupur, Varanasi (India).
 It was established in 1904 by Dr. Annie Besant.
Sanghamitta Balika Vidyalaya (also called: Sanghamitta Girls' College) is a Buddhist girls' school in Galle, Sri Lanka.
 It is a national school, which provides primary and secondary education.
 The school was established in 1919, as the first Buddhist Girls School in Southern province of Sri Lanka.
 Francis Amarasiri Wickramasinghe Muhandiram was the founder of Sanghamitta Balika Vidyalaya.
 Today it is a leading girls school in Southern Sri Lanka and accommodates over 5,000 students.
Unlike a charitable foundation, a private foundation does not generally solicit funds from the public.
 And a private foundation does not have the legal requirements and reporting responsibilities of a registered, non-profit or charitable foundation.
 Not all foundations engage in philanthropy: some private foundations are used for estate planning purposes.
The Aske Baronetcy, of Aughton in the East Riding of the County of York, is a title in the Baronetage of the United Kingdom.
 It was created on 21 January 1922 for the barrister and Liberal politician Sir Robert Aske.
The Rich Eychaner Charitable Foundation is a charitable foundation located in Des Moines, Iowa which seeks to promote tolerance and non-discrimination.
 The foundation awards scholarships to students who have been active in LGBTQ issues, promotes Iowa's anti-bullying legislation, and helped created the Iowa Pride Network and the GLBT Youth In Iowa Schools Task Force.