Mind-stretching activities correlate with the social studies curriculum. The book contains 33 topics, each with background information and writing activities. Among the topics are Exploration, Prince Henry, Horses, Colonization, Bill of Rights, Trail of Tears, Gold Rush, Sojourner Truth, Reconstruction, Industrial Revolution, Inventions, Immigration, Cities, Canada & British Rule, Cinco de Mayo, Renaissance, Fertile Crescent, Pyramids, Cleopatra, Alexander the Great, Greek Theater, Roman Architecture, Great Wall of China, Buddha, Silk Road, Aborigines, Settlement of Australia, Elizabeth I, Catherine the Great, Stalin, WW II, Holocaust, and the UN. Grades 5 to 8.