Richard Riley, photograph album with cyanotypes of the Calhoun Industrial School (a freedmen's school devoted to industrial education), Calhoun, Va., ca. 1897-1905. (Detail, GLC 05140.02) "America's Reconstruction: People and Politics After the Civil War" http://www.digitalhistory.uh.edu/reconstruction/index.html A digitized version, sponsored by the Gilder Lehrman Institute, of a major traveling exhibition (1996-1999) curated by Eric Foner and Olivia Mahoney and originally sponsored by the Valentine Museum in Richmond, Virginia. "A House Divided: America in the Age of Lincoln" http://www.digitalhistory.uh.edu/ahd/index.html A digitized version, sponsored by the Gilder Lehrman Institute, of a major exhibition at the Chicago History Society, curated by Eric Foner and Olivia Mahoney. "Civil War: Water Color Sketchbook by Private Henry Berckhoff" http://www.digitalhistory.uh.edu/sketchbook.html The digital version of the first-ever exhibition of a series of watercolors from the holdings of the Gilder Lehrman Collection depicting scenes from the Civil War composed by a Union soldier from New York. "Frederick Douglass' Letter to Mary Todd Lincoln" http://www.digitalhistory.uh.edu/exhibits/douglass_exhibit/index.html A mini online exhibition featuring Frederick Douglass's personal letter to President Lincoln's widow thanking her for a unique memento of the slain president. "Dear Madam: Catharine Macaulay and Mercy Otis Warren" http://www.digitalhistory.uh.edu/exhibits/dearmadam/index.html In this digitized version of an exhibition of letters from the Gilder Lehrman Collection, many of which had never been exhibited before, a great historian of England and one of the first historians of the United States exchange their thoughts and ideas -- and both happen to be women.