Geographical Location - Wisconsin
- Aztalan
- Barghoorn and Tyler Discover 2-Billion-Year-Old Microfossils
- Birth of the Republican Party
- Black Hawk War
- Cassinelli and Associates Discover R136a, the Most Massive Star Known
- Effigy Mounds
- French Explore the Mississippi Valley
- Leopold Publishes A Sand County Almanac
- Mahican
- Medicine and Modes of Curing: Post-contact
- Menominee
- Menominee Restoration Act
- Northwest Ordinance
- Ojibwa
- Old Copper Complex Flourishes in North America
- Old Copper culture
- Oneida
- Oneota
- Petun
- Potawatomi
- Steenbock Discovers That Sunlight Increases Vitamin D in Food
- Wild Rice
- Winnebago Uprising
- Wright Founds the Taliesin Fellowship
