Chi Tau (ΧΤ) was a small national men's fraternity founded on October 3, 1920 at Trinity College, the predecessor to Duke University.

[1][2] The group honored four Founders: The group existed as a local for almost three years, until May 2, 1923 when a joint meeting was called in the city of Durham, North Carolina between Chi Tau and another local society, Lambda Sigma Delta, then existing at North Carolina State College.

The two groups established themselves as a new national fraternity under the name Chi Tau, then incorporating under the laws of the state of North Carolina.

[5]Writing about the period of disintegration after 1925, the authors appear unaware of the decision by apparently healthy Epsilon chapter at Presbyterian College to similarly seek a move to align with another national fraternity, Beta Kappa in 1930.

Additionally, contradicting the statement from Wake Forest, rather than meeting its demise in 1924 Alpha chapter continued its presence - according to Duke's yearbook, The Chanticleer - through 1928.

In 1933 it opted to merge into Phi Sigma Kappa's Alpha Deuteron chapter on that campus, expanding on friendships that had developed between the members.