Delta Kappa Epsilon (ΔΚΕ; also pronounced D-K-E or "Deke") is one of the oldest and largest fraternities in the world with 51 active chapters in the United States and Canada. Delta Kappa Epsilon was founded at Yale College in 1844 by 15 men of the sophomore class part of whom hadn't been invited to join the two existing societies among others who had been invited to join. They therefore formed their own fraternity to establish a fellowship "where the candidate most favored was he who combined in the most equal proportions the gentleman, the scholar, and the jolly good fellow."
Since then Delta Kappa Epsilon has produced five presidents of the United States (more than any other fraternity), has had its flag flown on the first expedition to the North Pole and again on a manned landing to the moon. The private Gentleman's club the DKE Club of New York was founded in 1885 and is currently in residence at the Yale Club of New York City.
Read more about Delta Kappa Epsilon: Founding, Chapters, Notable Members, Purpose of Chapters, Controversy