Fredericksburg National Cemetery was created by act of Congress, in July 1865 after reunification of the states, to honor the Federal soldiers who died in local battles or from disease. The cemetery was placed on Marye's Heights, a Confederate stronghold during the Battle of Fredricksburg. There are a total of 15,243 Civil War interments, of those, only 2,473 were identified. Graves of soldiers, known and unknown, are distinguished by their markers. Identified soldiers are buried in individual graves, marked by a rounded headstone inscribed with the soldier's name and state. Unknown soldiers were buried in mass graves, the headstones marking these plots contain two numbers. The first, upper, number identifies the plot while the second, lower, number identifies the number of soldiers buried in that plot.