|Founded||April 15, 1907|
University of Illinois at Urbana–Champaign
|Emphasis||Engineers, Architects, and Scientists|
|Motto||Latin: Veritas Omnia Vincit|
(Truth Conquers All)
|Colors|| Old Rose|
|Chapters||38 Active 4 Colonies|
26,000+  lifetime
|Headquarters||120 South Center St|
Plainfield, IN 46168
Triangle is a fraternity for male students majoring in engineering, architecture, and the physical, mathematical, biological, and computer sciences. It is the only member of the North American Interfraternity Conference to limit its membership recruitment to these majors.
Triangle Fraternity organized at the University of Illinois at Urbana–Champaign in the fall of 1906 and was incorporated by the state of Illinois on 15 April 1907, which is celebrated each year as Founders' Day.
As of February 2020 there are thirty-nine chapters and six colonies of Triangle Fraternity active in the U.S. The headquarters is located in Plainfield, Indiana in a historic building erected as a Carnegie library in 1912.
Triangle Fraternity is one of three active national fraternities not to use Greek letters for its name, the others being Acacia and FarmHouse.
Triangle was formed in the fall of 1906 by sixteen civil engineering juniors at the University of Illinois. It was formally incorporated on 15 April 1907. The date of incorporation has been designated as Founders' Day, and Triangle celebrates it every year at each chapter.
Triangle's mission statement reads, "The purpose of Triangle shall be to maintain a fraternity of engineers, architects and scientists. It shall carry out its purpose by establishing chapters that develop balanced men who cultivate high moral character, foster lifelong friendships, and live their lives with integrity."
Triangle Fraternity was founded on high ethical and moral ideals, and expects the men of the fraternity to follow a set Code of Ethics, which is as follows:
As a member of Triangle, I recognize my obligation to:
Main article: List of Triangle Fraternity brothers
Main article: List of Triangle chapters