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EDUCATIONAL SERVICES, NAMELY PROVIDING PROFESSIONAL DEVELOPMENT PROGRAMS, EDUCATIONAL GUIDED STUDY TOURS TO PLACES OF CULTURAL, HISTORICAL OR EDUCATIONAL INTEREST; AND DEVELOPMENT AND DISSEMINATION OF EDUCATIONAL CURRICULUM MATERIALS FOR K-12 EDUCATORS IN THE FIELDS OF UNITED STATES AND WORLD HISTORY AND THE HUMANITIES

PRINTED INSTRUCTIONAL, EDUCATIONAL, TEACHING, CURRICULUM MATERIALS FOR K-12 EDUCATORS IN THE FIELDS OF UNITED STATES AND WORLD HISTORY AND THE HUMANITIES