A&E Television
History.com: The Deadliest Tornado in u.s. History Blindsided the Midwest in 1925
Now known as the Tri-State Tornado, it turned March 18 into a day of gruesome destruction and bizarre survival stories. This tornado hit Missouri, Illinois and Indiana and resulted in nearly 700 deaths.
Digital History
Digital History: The u.s. Canadian Border
The border between the United States and Canada in the east and Midwest was still not settled in the 1840s. See what happened that precipitated a final decision.