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International academic perspectives on global issues
Academic articles, images, topic selections, and more for middle schoolers
A complete, cross-searchable archive of National Geographic magazine, books, videos, and more.
Continuously updated information and opinions cover hot issues.
Users can manipulate and explore 3D interactive models, allowing students to visualize and ...
Academic articles, videos, primary documents, and more on topics in U.S. history
Academic articles, videos, case studies, and more on topics in world history