Question: What is the establishment year of this private liberal arts college in WIlliamstown, Massachusetts, where Saul Kassin was a professor of psychology?

Context paragraphs:
Ancilla College: Ancilla College, near Donaldson, Indiana, is a two-year private liberal arts college that admits both men and women students.  Ancilla College was founded by the Poor Handmaids of Jesus Christ in 1937 as an extension of DePaul University for the training of novices and candidates of the Poor Handmaids of Jesus Christ.  In 1966 the college started admitting the public as a private liberal arts community college.  Ancilla College focuses on serving the seven surrounding counties of Indiana.  Ancilla College grants associate degrees in multiple programs, from which Ancilla graduates may easily transfer to a four-year college or university, especially via the transfer agreements that Ancilla College has with 14 Indiana colleges and universities.  The Latin word "ancilla" means "slave girl," a reference to the college's sponsor, The Poor Handmaids of Jesus Christ.

Saul Kassin: Saul Kassin is a Distinguished Professor of Psychology at John Jay College of Criminal Justice in New York City.  and Massachusetts Professor of Psychology at Williams College in Williamstown, Massachusetts.

Whitman College: Whitman College is a private liberal arts college located in Walla Walla, Washington.  Initially founded as a seminary by a territorial legislative charter in 1859, the school became a four-year degree-granting institution in 1882.  Whitman College is accredited by the Northwest Association of Schools and Colleges and competes athletically in the NCAA Division III Northwest Conference.  The school offers 48 majors and 33 minors in the liberal arts and sciences, and has a student to faculty ratio of 9:1.  Whitman was the first college in the Pacific Northwest to install a Phi Beta Kappa chapter, and the first school in the United States to require comprehensive exams for graduation.  Whitman was ranked tied for 41st in the nation in the 2017 "U.S. News & World Report" list of Best Liberal Arts Colleges.  Whitman's acceptance rate for 2015 was 41%.

Colorado College: The Colorado College (CC) is a private liberal arts college in Colorado Springs, Colorado, United States, near the foot of the Rocky Mountains.  It was founded in 1874 by Thomas Nelson Haskell in his daughter's memory.  The college enrolls approximately 2,000 undergraduates at its 90 acre campus, 70 mi south of Denver.  The college offers 42 majors and 33 minors, and has a student-faculty ratio of 10:1.  Famous alumni include James Heckman, Ken Salazar, Lynne Cheney, Thomas Hornsby Ferril, Marc Webb, and Steve Sabol.  Colorado College had an acceptance rate of 15% for the Class of 2021, was ranked as the best private college in Colorado by Forbes, and was listed as tied for the 23rd-best National Liberal Arts College, and as the No. 1 Most Innovative Liberal Arts School, in the 2018 "U.S. News & World Report" rankings.

Liberal arts college: A liberal arts college is a college with an emphasis on undergraduate study in the liberal arts and sciences.  A liberal arts college aims to impart a broad general knowledge and develop general intellectual capacities, in contrast to a professional, vocational, or technical curriculum.  Students in a liberal arts college generally major in a particular discipline while receiving exposure to a wide range of academic subjects, including sciences as well as the traditional humanities subjects taught as liberal arts.  Although it draws on European antecedents, the liberal arts college is strongly associated with American higher education, and most liberal arts colleges around the world draw explicitly on the American model.

List of Williams College presidents: Williams College is an American private liberal arts college located in Williamstown, Massachusetts.  Established in 1793 with funds from the estate of Ephraim Williams, Williams is one of the oldest academic institutions in the United States.  Williams forms part of the historic Little Three colleges, along with Wesleyan University and rival Amherst College.

Macalester College: Macalester College ( ) is a private, coeducational liberal arts college located in Saint Paul, Minnesota, US.  It was founded in 1874 as a Presbyterian-affiliated but nonsectarian college.  Its first class entered September 15, 1885.  Macalester is exclusively an undergraduate four-year institution and enrolled 1,978 students in the fall of 2013 from 50 U.S. states and 90 countries.  In 2015, "U.S. News & World Report" ranked Macalester as tied for the 23rd best liberal arts college in the United States, 6th for undergraduate teaching at a national liberal arts college, and 19th for best value at a national liberal arts college.

College of Idaho: The College of Idaho is a private, residential liberal arts college in the western United States located in Caldwell, Idaho.  Founded in 1891, it is the state's oldest private liberal arts college, with an enrollment of 1,140 students.

Williams College: Williams College is a private liberal arts college in Williamstown, Massachusetts, United States.  It was established in 1793 with funds from the estate of Ephraim Williams a colonist from the Province of Massachusetts Bay who was killed in the French and Indian War in 1755.  The college was ranked first in 2017 in the "U.S. News & World Report"' s liberal arts ranking for the 15th consecutive year, and third among liberal art colleges in the 2017 "Forbes" magazine ranking of America's Top Colleges.

Williams College (disambiguation): Williams College is a private liberal arts college in Williamstown Massachusetts.

Supporting paragraphs: Saul Kassin Williams College
Answer: 1793