- ...Washingtonia, (pictured) a genus of palm that produces a fruit eaten by Native Americans in the United States?
- ...that the Land Run of 1889 resulted in the founding of both Oklahoma City and Guthrie, whose populations grew from zero to over 10,000 in less than a day?
- ...that William Hawkins Polk, brother of President James Polk, was a U.S. Representative and ambassador to the Kingdom of Naples?