The term Triad is used to designate certain historic groupings of seminal college fraternities in North America.

Union Triad

The Union Triad is a group of the three oldest existing Greek-letter social fraternities in North America that were founded at

Union College Union College is a private liberal arts college in Schenectady, New York. Founded in 1795, it was the first institution of higher learning chartered by the New York State Board of Regents, and second in the state of New York, after Columbia Co ...

Schenectady, New York Schenectady () is a city in Schenectady County, New York, United States, of which it is the county seat. As of the 2020 census, the city's population of 67,047 made it the state's ninth-largest city by population. The city is in eastern New Yo ...

: the

Kappa Alpha Society The Kappa Alpha Society (), founded in 1825, was the progenitor of the modern fraternity system in North America. It is considered to be the oldest national, secret, Greek-letter social fraternity and was the first of the fraternities which would ...

(established 1825), the

Sigma Phi Society The Sigma Phi Society () was founded on the Fourth of March in the year 1827, on the campus of Union College as a part of the Union Triad in Schenectady, New York. It is the second Greek fraternal organization founded in the United States.

(1827) and the Delta Phi (1827). No formal organization exists. Other fraternities which owe their birth to Union College include

Psi Upsilon Psi Upsilon (), commonly known as Psi U, is a North American fraternity,''Psi Upsilon Tablet'' founded at Union College on November 24, 1833. The fraternity reports 50 chapters at colleges and universities throughout North America, some of which ...

(1833), Chi Psi (1841) and Theta Delta Chi (1847). Collectively, these many foundings earned Union College the title Mother of Fraternities.

Miami Triad

The Miami Triad refers to three fraternities founded at

Miami University Miami University (informally Miami of Ohio or simply Miami) is a public research university in Oxford, Ohio. The university was founded in 1809, making it the second-oldest university in Ohio (behind Ohio University, founded in 1804) and the ...

Oxford, Ohio Oxford is a city in Butler County, Ohio, United States. The population was 23,035 at the 2020 census. A college town, Oxford was founded as a home for Miami University and lies in the southwestern portion of the state approximately northwest ...

, in the 19th century:

Beta Theta Pi Beta Theta Pi (), commonly known as Beta, is a North American social fraternity that was founded in 1839 at Miami University in Oxford, Ohio. One of North America's oldest fraternities, as of 2022 it consists of 144 active chapters in the Uni ...

(1839),

Phi Delta Theta Phi Delta Theta (), commonly known as Phi Delt, is an international secret and social fraternity founded at Miami University in 1848 and headquartered in Oxford, Ohio. Phi Delta Theta, along with Beta Theta Pi and Sigma Chi form the Miami Triad. ...

(1848), and

Sigma Chi Sigma Chi () International Fraternity is one of the largest North American fraternal literary societies. The fraternity has 244 active (undergraduate) chapters and 152 alumni chapters across the United States and Canada and has initiated more t ...

(1855). Historians of fraternities often compare the significance of the Miami Triad to that of the earlier Union Triad. Delta Zeta sorority was founded at Miami University in 1902, and

Phi Kappa Tau Phi Kappa Tau (), commonly known as Phi Tau (), is a collegiate fraternity located in the United States. The fraternity was founded in 1906. As of November 2022, the fraternity has 161 chartered chapters, 79 active chapters, 6 Associate chapte ...

fraternity in 1906. Delta Sigma Epsilon sorority began there in 1914, merging in 1956 with Delta Zeta. These numerous Greek organization foundings cause some to refer to the school also as the Mother of Fraternities. It has been tradition at some campuses that have chapters of each of the Miami Triad, such as the

University of Kansas The University of Kansas (KU) is a public research university with its main campus in Lawrence, Kansas, United States, and several satellite campuses, research and educational centers, medical centers, and classes across the state of Kansas. T ...

, and the

University of Mississippi The University of Mississippi ( byname Ole Miss) is a public research university that is located adjacent to Oxford, Mississippi, and has a medical center in Jackson. It is Mississippi's oldest public university and its largest by enrollment ...

, to hold an annual party, formal, or ball, often referred to as "Miami Triad" or simply "Triad", to commemorate their tie to each other and the Miami Triad's place in Greek history. This tradition has waned in recent years and some schools have transformed the celebration into new events, such as the University of Kansas' Miami Triad Concert.

Lexington Triad

The Lexington Triad is a group of three fraternities founded by students from colleges in

Lexington, Virginia Lexington is an independent city in the Commonwealth of Virginia. At the 2020 census, the population was 7,320. It is the county seat of Rockbridge County, although the two are separate jurisdictions. The Bureau of Economic Analysis combines ...

, during

Reconstruction Reconstruction may refer to: Politics, history, and sociology * Reconstruction (law), the transfer of a company's (or several companies') business to a new company *''Perestroika'' (Russian for "reconstruction"), a late 20th century Soviet Unio ...

following the

American Civil War The American Civil War (April 12, 1861 – May 26, 1865; also known by Names of the American Civil War, other names) was a civil war in the United States. It was fought between the Union (American Civil War), Union ("the North") and t ...

. Members of the triad include

Alpha Tau Omega Alpha Tau Omega (), commonly known as ATO, is an American social fraternity founded at the Virginia Military Institute in 1865 by Otis Allan Glazebrook. The fraternity has around 250 active and inactive chapters and colonies in the United Stat ...

(founded in

Richmond, Virginia (Thus do we reach the stars) , image_map = , mapsize = 250 px , map_caption = Location within Virginia , pushpin_map = Virginia#USA , pushpin_label = Richmond , pushpin_m ...

, in 1865 by students from

Virginia Military Institute la, Consilio et Animis (on seal) , mottoeng = "In peace a glorious asset, In war a tower of strength""By courage and wisdom" (on seal) , established = , type = Public senior military college , accreditation = SACS , endowment = $696.8 mill ...

(VMI) in Lexington),

Kappa Alpha Order Kappa Alpha Order (), commonly known as Kappa Alpha or simply KA, is a social Fraternities and sororities, fraternity and a fraternal order founded in 1865 at Washington and Lee University, Washington College (now Washington and Lee University) i ...

(founded in 1865 at

Washington and Lee University , mottoeng = "Not Unmindful of the Future" , established = , type = Private liberal arts university , academic_affiliations = , endowment = $2.092 billion (2021) , president = William C. Dudley , provost = Lena Hill , city = Lexington ...

and not to be confused with the

), and

Sigma Nu Sigma Nu () is an undergraduate college fraternity founded at the Virginia Military Institute on January 1, 1869. The fraternity was founded by James Frank Hopkins, Greenfield Quarles and James McIlvaine Riley shortly after Hopkins witnessed w ...

(founded in 1869 at VMI). The national headquarters of both the Kappa Alpha Order and Sigma Nu are located in Lexington. The members of the Triad are sometimes also grouped as part of the Virginia Circle, which includes several other fraternities founded in Virginia roughly during the period of the Lexington Triad:

Kappa Sigma Kappa Sigma (), commonly known as Kappa Sig, is an American collegiate social fraternity founded at the University of Virginia in 1869. Kappa Sigma is one of the five largest international fraternities with currently 318 active chapters and col ...

and

Pi Kappa Alpha Pi Kappa Alpha (), commonly known as PIKE, is a college fraternity founded at the University of Virginia in 1868. The fraternity has over 225 chapters and colonies across the United States and abroad with over 15,500 undergraduate members over 3 ...

at the

University of Virginia The University of Virginia (UVA) is a public research university in Charlottesville, Virginia. Founded in 1819 by Thomas Jefferson, the university is ranked among the top academic institutions in the United States, with highly selective ad ...

, and sometimes

Sigma Phi Epsilon Sigma Phi Epsilon (), commonly known as SigEp, is a social college fraternity for male college students in the United States. It was founded on November 1, 1901, at Richmond College (now the University of Richmond), and its national headquarte ...

at Richmond College.

Jefferson Duo and Pennsylvania Triad

The Jefferson Duo includes the fraternities

Phi Gamma Delta Phi Gamma Delta (), commonly known as Fiji, is a social Fraternities and sororities, fraternity with more than 144 active chapters and 10 colonies across the United States and Canada. It was founded at Washington & Jefferson College, Jefferson C ...

and

Phi Kappa Psi Phi Kappa Psi (), commonly known as Phi Psi, is an American collegiate social fraternity that was founded by William Henry Letterman and Charles Page Thomas Moore in Widow Letterman's home on the campus of Jefferson College in Canonsburg, Pen ...

, founded in 1848 and 1852, respectively, at Jefferson College in Canonsburg,

Pennsylvania Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, ...

. A third,

Kappa Phi Lambda Kappa Phi Lambda Sorority, Inc. ( also known as Kappas and KPL) is a nonprofit, Asian-interest sorority that was founded on March 9, 1995 at Binghamton University in Binghamton, New York. Represented at 34 schools with over 4,000 members national ...

, was also founded there but dissolved in 1874. In 1865, Jefferson College combined with Washington College to become

Washington & Jefferson College Washington & Jefferson College (W&J College or W&J) is a private liberal arts college in Washington, Pennsylvania. The college traces its origin to three log cabin colleges in Washington County established by three Presbyterian missionaries t ...

Phi Kappa Sigma Phi Kappa Sigma () is an international all-male college secret society and social fraternity. While nicknames differ from institution to institution, the most common nicknames for the fraternity are Skulls, Skullhouse, Phi Kap, and PKS (the fi ...

, founded at the

University of Pennsylvania The University of Pennsylvania (also known as Penn or UPenn) is a Private university, private research university in Philadelphia. It is the fourth-oldest institution of higher education in the United States and is ranked among the highest- ...

in 1850, is grouped with Phi Gamma Delta and Phi Kappa Psi to complete the Pennsylvania Triad.

Farmville Four

Four sororities were formed at

Longwood University Longwood University is a public university in Farmville, Virginia. Founded in 1839, it is the third-oldest public university in Virginia and one of the hundred oldest institutions of higher education in the United States. Previously a college, Lo ...

, which are billed as the Farmville Four. These include Kappa Delta (1897), Sigma Sigma Sigma (1898), Zeta Tau Alpha (1898), and Alpha Sigma Alpha (1901). The four faces of the campus bell tower commemorate these four organizations.Noted on the university's website
Accessed 29 Mar 2021.

References