1830:	Navy officers given commissions In Revenue Service, under furlough from Navy Department until April 1832.
1941:	CGC Modoc was, in several instances, mistaken for the German battleship Bismarck by aircraft and ships of the Royal Navy who were in pursuit of the latter after the sinking of HMS Hood in the Denmark Straits.  The errors were realized and Modoc escaped unscathed in each instance.