Turning Points in Wisconsin HistoryLearn about the most important historic events in Wisconsin through hundreds of eyewitness accounts, pictures, archaeological sites, rare books, museum objects, early engravings, handwritten manuscripts, essays, lesson plans and reference tools. From early native peoples, geography, Indian Mounds, Aztalan, and Iroquois Wars through response to 20th-century change, Turning Points in Wisconsin History covers more than 12,000 years of Wisconsin History.