Commonly-used, abbreviated form of Delta Upsilon
, the first non-secret fraternity, currently the world's only international non-secret, non-hazing fraternity. North America's fifth oldest fraternity, it was founded at Williams College, Mass in 1834.
It is also currently Canada's largest fraternity with 5 chapters. Commited to Building Better Men, Delta Upsilon's non-secrecy allows it to be held accountable to its four founding principles, the development of character, the promotion of friendship, the diffusion of liberal culture, and the advancement of justice.
Dikaia Upotheke, Justice our Foundation
I rushed DU, because I don't see the point of keeping a fraternity's values and rituals a secret.