Hikaru Sulu

2265: Assigned to USS Enterprise as head of the astrosciences department
2266: Transferred to the Command Division, assigned to the helm & tactical officer
2270s-2280s: Remained with the Enterprise during its refit & as a training vessel
2286: Assigned to USS Enterprise-A as helmsman
2287: Assumed command of the USS Excelsior
2290-2293: Cataloged gaseous planetary bodies in the Beta Quadrant
2293: Took part in the Battle of Khitomer
2320: Retired from Starfleet