May Week was made at the 2nd countrywide conference in 1920 at Wilberforce University. The to start with graduate chapters ended up authorized in 1920 at the Second National Convention for graduate users in New York City and Washington, D.C. Delta Sigma Theta was the 1st nationwide African-American group to collaborate with Habitat for Humanity International in 1992, all through National President Bertha Roddey's administration.