This Day in Naval History – April 3
1797 - CAPT Thomas Truxtun issued first known American signal book using numerary system
1942 - ADM Nimitz named Commander-in-Chief, Pacific Ocean Areas, a joint command, and retained his other title, Commander-in-Chief, Pacific Fleet
1992 - First five coed recruit companies from Orlando, FL Naval Training Center granduate.
(Source: Navy News Service)