Question: What constitutional amendment did Harper v. Virginia State Board of Elections and Everson v. Board of Education apply

<P0-S0> The California State Board of Education is the governing and policy-making body of the California Department of Education. <P0-S1>  The State Board of Education sets K-12 education policy in the areas of standards, instructional materials, assessment, and accountability. <P0-S2>  The State Board of Education adopts textbooks for grades K-8, adopts regulations to implement legislation, and has authority to grant waivers of the Education Code. <P0-S3>  Content standards are designed to encourage the highest achievement of every student, by defining the knowledge, concepts, and skills that students should acquire at each grade level. <P0-S4>  The State Board of Education has eleven members, including one student member, all appointed by the Governor of California. <P0-S5>  The student member is selected from a group of three students nominated by the board. <P0-S6>  Those are picked from the delegation of the Student Advisory Board on Education, a conference run by the California Association of Student Councils. <SEP> <P1-S0> The Dixon School Case (Zellers v. Huff) was a lawsuit started in 1948 in New Mexico contesting the use of nuns, religious brothers and priests as teachers in publicly supported schools under the First Amendment to the United States Constitution. <P1-S1>  The case involved thirty schools in eleven New Mexico counties, twenty-eight plaintiffs, two hundred defendants, and public expenditures to the schools of over $600,000 annually. <P1-S2>  Following on the heels of the U.S. Supreme Court's decision in "Everson v. Board of Education", which applied First Amendment freedoms to state as well as federal law, the Dixon School Case was the first state case to implement separation of church and state in public schools, and was watched with interest nationally. <SEP> <P2-S0>  In the late 19th and early 20th centuries, eleven southern states established poll taxes as part of their disenfranchisement of most blacks and many poor whites. <P2-S1> Harper v. Virginia Board of Elections, 383 U.S. 663 (1966) , was a case in which the U.S. Supreme Court found that Virginia's poll tax was unconstitutional under the equal protection clause of the 14th Amendment. <P2-S2>  The Twenty-fourth Amendment to the United States Constitution (1964) prohibited poll taxes in federal elections; five states continued to require poll taxes for voters in state elections. <P2-S3>  By this ruling, the Supreme Court banned the use of poll taxes in state elections. <SEP> <P3-S0> Everson v. Board of Education, 330 U.S. 1 (1947) was a landmark decision of the United States Supreme Court which applied the Establishment Clause in the country's Bill of Rights to State law. <P3-S1>  Prior to this decision the First Amendment words, "Congress shall make no law respecting an establishment of religion" imposed limits only on the federal government, while many states continued to grant certain religious denominations legislative or effective privileges. <P3-S2>  This was the first Supreme Court case incorporating the Establishment Clause of the First Amendment as binding upon the states through the Due Process Clause of the Fourteenth Amendment. <P3-S3>  The decision in "Everson" marked a turning point in the interpretation and application of disestablishment law in the modern era.