Portal:United States/Did you know/23

== Source ==
 * ... that completion of the Howard A. Hanson Dam (pictured) in 1961 ended a 70-year era of flooding in the Green River Valley, and by 1996, the dam had prevented an estimated US694 million in flood damages?
 * ... that the commanding officer of American soldier Matthias W. Day wanted to court-martial him for the actions that instead won him the Medal of Honor during the Indian Wars?
 * ... that Elihu Embree published the first newspaper in the United States devoted to abolishing slavery until his death in 1820?
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