The Roxbury Latin School is a private boys' day school that was founded in 1645 in the town of Roxbury (now a neighborhood of Boston, Massachusetts) by the Rev. John Eliot under a charter received from King Charles I of England. It bills itself as the "oldest independent school in continuous existence" in North America. Located since 1927 at 101 St. Theresa Avenue in the West Roxbury neighborhood of Boston, the school now serves roughly 300 boys in grades seven through twelve. Eliot founded the school "to fit [students] for public service both in church and in commonwealth in succeeding ages," and the school still considers instilling a desire to perform public service among its principal missions. The school's endowment is estimated at $189 million, the largest of any boys' day school in the United States. The school maintains a need-blind admissions policy, admitting boys without consideration of the ability of their families to pay the full tuition. Its previous headmaster, F. Washington Jarvis, who retired in the summer of 2004 after a 30-year tenure, published two books about Roxbury Latin: a history of the school and a collection of his speeches to boys at Roxbury Latin (With Love and Prayers). The title of the former, Schola Illustris, was the phrase Cotton Mather used to describe the school in 1690, following John Eliot's death. In addition to those books, Richard Walden Hale published Tercentenary History of the Roxbury Latin School in 1946. Roxbury Latin is a member of the Independent School League and NEPSAC. It has an unofficial sister school relationship with the Winsor School in Boston as well as an African brother school, the Maru a Pula School. Rankings According to the school's website, the middle 50% SAT Scores for the Class of 2019 ranged from 1450 to 1570, with the breakdown being 710-770 for Evidence-Based Reading and Writing and 740-800 for Mathematics. The Class of 2021 profile describes that "the median standardized testing of each class consistently hovers around 1500." Roxbury Latin has among the highest median SAT averages of any private school. A 2004 piece in The Wall Street Journal noted Roxbury Latin for its acceptance rates at the most competitive universities, despite maintaining a low tuition relative to its peers ($26,100 in 2013–2014). In 2003, Worth magazine ranked Roxbury Latin as the #1 "feeder school" for elite universities, with a larger portion of its graduating class