The largest warship built in Philadelphia yards up to then, the U.S.S. Chattanooga, is launched
Built and launched at the shipyards of William Crump and Sons, the steam frigate Chattanooga she was turned over to the Philadelphia Naval Yard for completion. The vessel was not commissioned until May 1866, with the Civil War long over. Decommissioned after only four months, she was mothballed in the Delaware River where in 1871 she was holed by ice and sank. The wreck was sold for scrap soon after. (By John Osborne)
Thomas Scharf and Thompson Wescott, History of Philadelphia 1609-1884, in three volumes (Philadelphia, PA: L.H. Everts & Co., 1884), I: 818.