L.M. Blumstein department store, 125th Street. March 21, 1954. Louis Blumstein, a German Immigrant, opened a department store on West 125th Street in 1898. Over the next two decades, the street continued to develop into an uptown shopping district. Blumstein died in 1920, but his family pressed on with expansion plans, breaking ground on a new, eight-story building in 1921. The hybrid Art Nouveau-Art Deco structure stretched the entire block between 124th and 125th Streets and made extensive use of copper ornamentation on its main facade. As African-American families moved to Harlem in greater numbers, the entirely white sales staff at Blumstein’s became a point of tension in the neighborhood. In 1934, the Citizens’ League For Fair Play organized a successful boycott of the store, leading to a change in its hiring practices. In 1943, Blumstein’s became the first department store to feature black mannequins and a black Santa Claus as part of its holiday programming. On September 20, 1958, Dr. Martin Luther King Jr. was stabbed at a book signing held at Blumstein’s. Izola Curry stabbed the civil rights leader with a letter opener, nearly piercing his aorta. A bystander wisely cautioned onlookers not to remove the letter opener, lest it cause damage on the way out, likely saving King’s life. The Blumstein family sold the building in 1976.