|Fleet Captain MacMillan in Micro Hero form.|
|Assignment(s):||Chief of Starfleet Research and Development|
Early life before StarfleetEdit
Xavier was born on May 17, 2225 human calendar time at Wichita, Kansas on Earth.
- 2225: Xavier is born on Earth in Wichita, Kansas.
- 2243: Xavier enters Starfleet Academy
- 2247: Xavier graduates Starfleet Academy, and is promoted to Ensign. The first assignment is the USS Constitution as an engineer.
- 2250: Xavier is promoted to Lieutenant junior grade and assigned to the USS Enterprise as an engineer.
- 2253: Xavier is promoted to full Lieutenant and assigned to the USS Bridger as the Chief Engineer.
- 2256: Xavier is promoted to Lieutenant Commander and is made the Chief Engineer on the USS Excalibur.
- 2259: Xavier is promoted to full Commander and assigned to the USS Merrimac as the First Officer.
- 2264: Xavier is promoted to Captain and is the Captain of Engineering at Starbase 3.
- 2270: Xavier is promoted to Fleet Captain and is made Chief of Starfleet R & D at Starfleet Headquaters.
|Cadet||2243-2247||attended Starfleet Academy.|
|Ensign||2247- 2250||assigned as Ensign on the USS Constitution as an Engineer.|
|Lieutenant junior grade|
|2250-2253||assigned as an Engineer on the USS Enterprise.|
|Lieutenant||2253-2256||assigned as the Chief engineer on the USS Bridger.|
|Lieutenant commander||2256-2259||Chief engineer on the USS Excalibur.|
|Commander||2259-2264||Executive Officer on the USS Merrimac.|
|Captain||2264-2270||Captain of Engineering on Starbase 3.|
|Fleet captain||2270-||Chief of Starfleet R & D at Starfleet Headquarters.|
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