On May 10, 1876, Ulysses S. Grant pulled a lever to start the mighty 1,400-horsepower Corliss Steam Engine, powering acres of machinery for the nation's Centennial Exhibition in Philadelphia. Grant summed up a century of American progress by saying, "Whilst proud of what we have done, we regret that we have not done more. Our achievements have been great enough however to make it easy for our people to acknowledge superior merit wheresoever found."

That summer, Fourth of July celebrations coincided with early reports that Lieutenant Colonel George A. Custer and his Seventh Cavalry...

In his eighth and final annual message to Congress, Ulysses S. Grant reminded the nation that it was his "fortune or misfortune, to be called to the office of Chief Executive without any previous political training." The electoral crisis that dominated Grant's last months in office left little room for political error. On November 7, 1876, Democrat Samuel J. Tilden won the popular vote, but Republican Rutherford B. Hayes could claim the presidency by a single electoral vote if he captured all disputed electors from Florida, Louisiana, South Carolina, and Oregon. Uncertainty gave way to...