Members of the New York City, N.Y., Fire Department march with U.S. flags in Manhattan March 17, during the 251st annual St. Patrick’s Day Parade. The first St. Patrick's Day Parade in N.Y. was held on lower Broadway St. in 1762. The current N.Y. City St. Patrick’s Day parade is the largest celebration of Irish history and heritage in the world. (U.S. Air Force photo by Tech. Sgt. Raymond Mills)