More widely, anti-racist socialists were spurred to action by the Springfield race riot of 1908. Socialist writer William English Walling's reporting on the riot inspired another socialist, Mary White Ovington, among others, to work with prominent black leaders such as W. E. B. Du Bois, Ida B. Wells, and Mary Church Terrell to establish the National Association for the Advancement of Colored People. Walling and Ovington both argued inside the party that it had not done enough to oppose racism and they were joined by other left-wing intellectuals who published articles in the party press about the importance of anti-racism to the socialist cause, including Hubert Harrison and I. M. Rubinow.