Triads (fraternities)

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

The Union Triad is a group of the three oldest existing Greek-letter social fraternities in North America that were founded at Union College in Schenectady, New York: the Kappa Alpha Society (established 1825), Sigma Phi (1827) and the Delta Phi (1827). No formal organization exists.

Other fraternities which owe their birth to Union College include Psi Upsilon (1833), Chi Psi (1841) and Theta Delta Chi (1847). Collectively, these many foundings earned Union College the title Mother of Fraternities.

The Miami Triad refers to three fraternities founded at Miami University in Oxford, Ohio in the 19th century: Beta Theta Pi (1839), Phi Delta Theta (1848), and Sigma Chi (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 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, and the University of Mississippi, 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.

...
Wikipedia