The advance of the continuous telegraph line across the United States, almost complete, reached Salt Lake City.  Immediately, the Mormon leader Brigham Young sent a celebratory message to President Lincoln in Washington DC.  (By John Osborne) 
Source Citation
               E.J. Burrows, ed., The Great Rebellion of 1861: Twelve Months' History of the United States ... (Philadelphia, PA: C. Sherman & Son, 1862), 46.
Record Data
Date Certainty
              Exact
          Type
          Science/Technology
               
     
 
