White supremacy limited their ability to participate in educational policymaking on the political level. State governments soon moved to undermine their citizenship by restricting their right to vote. By the late 1870s, Blacks were disenfranchised and segregated across the American South. White politicians in Mississippi and other states withheld financial resources and supplies from Black schools. Nevertheless, the presence of Black teachers, and their engagement with their communities both inside and outside the classroom, ensured that Black students had access to education despite these external constraints. During World War II, demands for unity and racial tolerance on the home front provided an opening for the first Black history curriculum in the country. For example, during the early 1940s, Madeline Morgan, a Black teacher in the Chicago public schools, created a curriculum for students in grades one through eight highlighting the contributions of Black people to the history of the United States. At the close of the war, Chicago's Board of Education downgraded the curriculum's status from mandatory to optional. Predominantly Black schools for kindergarten through twelfth grade students were common throughout the U.S. before the 1970s. By 1972, however, desegregation efforts meant that only 25% of Black students were in schools with more than 90% non-White students. However, since then, a trend towards re-segregation affected communities across the country: by 2011, 2.9 million African American students were in such overwhelmingly minority schools, including 53% of Black students in school districts that were formerly under desegregation orders. As late as 1947, about one third of African Americans over 65 were considered to lack the literacy to read and write their own names. By 1969, illiteracy as it had been traditionally defined, had been largely eradicated among younger African Americans. U.S. census surveys showed that by 1998, 89 percent of African Americans aged 25 to 29 had completed a high-school education, less than Whites or Asians, but more than Hispanics. On many college entrance, standardized tests and grades, African Americans have historically lagged behind Whites, but some studies suggest that the achievement gap has been closing. Many policy makers have proposed that this gap can and will be eliminated through policies such as affirmative action, desegregation, and multiculturalism. Between 1995 and 2009, freshmen college enrollment for African Americans increased by 73 percent and only 15 percent for Whites. Black women are enrolled in college more than any other race and gender group,