On July 21, 1865 Harvard University held a Commemoration Day as part of that year's Commencement Week, to celebrate the end of the American Civil War and honor the Harvard alumni who had served and died in it.[1]
^Bail, H. V. (1942). Harvard’s Commemoration Day July 21, 1865. The New England Quarterly, 15(2), 256–279. https://doi.org/10.2307/360526