![Boulder [Hoover] Dam](https://primarysourcenexus.org/wp-content/uploads/2017/12/boulder-dam.jpg)
Today in History–December 21–the Library of Congress features the Hoover Dam, which got its start when President Calvin Coolidge signed the Boulder Canyon Project Act on this date in 1928. Originally known as the Boulder Dam, this wonder of civil engineering distributes water from the Colorado River for use in Arizona, California, Colorado, Nevada, New Mexico, Utah,…
Today in History–September 30–the Library of Congress features electricity. On this day in 1882, the first hydroelectric central station in the world began operation on the Fox River in Appleton, Wisconsin. This and other hydroelectric plants provided inexpensive electricity, spurring industrial growth in many regions of the country around the turn of the 20th century. Find out…
Today in History–January 17–the Library of Congress features innovative leader Benjamin Franklin, born on this date in 1706. Learn more about this fascinating self-educated man who was a printer, writer, scientist, and statesman by visiting the Today in History section, then click the links below to access more resources about Ben Franklin. Benjamin Franklin Papers The select works of Benjamin Franklin; including his autobiography 1857 Benjamin…
Today in History–August 12–the Library of Congress features scientist and inventor Thomas A. Edison, who is credited with completing the model of the first phonograph on this day in 1877. Find out more about the “wizard of Menlo Park” by visiting the Today in History section, where you’ll also find links to other Library sound collections. Then click the links below…