groups are coeducational.
=== Greek and social life ===
About 30% of undergraduate men and about 40% of undergraduate women at Duke are members of fraternities and sororities. Most of the 17 Interfraternity Council recognized fraternity chapters live in sections within the residence halls. Eight National Pan-Hellenic Council (historically African-American) fraternities and sororities also hold chapters at Duke. The first historically African-American Greek letter organization at Duke University was the Omega Psi Phi, Omega Zeta chapter, founded on April 12, 1974. In addition, there are seven other fraternities and sororities that are a part of the Inter-Greek Council, the multicultural Greek umbrella organization, in addition to the local group Trident Society. Duke also has Selective Living Groups, or SLGs, on campus for students seeking informal residential communities often built around themes. SLGs are residential groups similar to fraternities or sororities, except they are generally co-ed and unaffiliated …
