The Nannie Helen Burroughs School, formerly known as National Training School for Women and Girls, was a private coeducational elementary school at 601 50th Street NE in Washington, D.C. The school was founded in 1909 by Nannie Helen Burroughs as The National Trade and Professional School for Women and Girls, Inc. and was the first school in the nation to provide vocational training for African-American females, who did not otherwise have many educational opportunities available to them. The 1928 Trades Hall building, the oldest building on the campus, was declared a National Historic Landmark in 1991. The property now houses the headquarters of the Progressive National Baptist Convention as well as the Monroe School, a private junior-senior high school that continues Burroughs' legacy.