On December 10, 1748, Frederick County was officially separated from Prince George's County. On December 10, 1887, James H. Gambrill, Jr., shot and killed Nelson Stanton, 42, whom he caught stealing coal from the rear of his father's Frederick Flouring Mill on South Carroll Street. Gambrill later testified that it was an accident. On December 10, 1910, The Evening Post began publication in Frederick. It later changed to a morning edition and was, in 1916, purchased by The Great Southern Printing and Manufacturing Company, the publishers of The News. On December 10, 1940, the first formal steps were taken to beatify Mother Elizabeth Ann Seton. On December 10, 1941, Lt. Col. Elmer F. Munshower, later commander of the Maryland State Police, and an alderman and mayor of Frederick, was named commander of A. P. Hill Reservation at Petersburg, VA. If anyone can add information to these History Moments, or would like to suggest an item for another calendar day, please contact me privately. John W. Ashbury (wasps65@earthlink.net)