Civil Rights Movement: 1890-1900 1890: The state of Mississippi adopts poll taxes and literacy tests to discourage black voters. 1895: Booker T. Washington delivers his Atlanta Exposition speech, which accepts segregation of the races. 1896: The Supreme Court rules in Plessy v. Ferguson the separate but equal treatment of the races is constitutional. 1900-1910 1900-1915: Over one thousand blacks are lynched in the states of the former Confederacy. 1905: The Niagara Movement is founded by W.E.B. du Bois and other black leaders to urge more direct action to achieve black civil rights. 1910-1920 1910: National Urban League is founded to help the conditions of urban African Americans. 1920-1930