Klaus Muller

Klaus was an Engineer onboard the USS Xerxes (NCC-505) in the late 23rd century. 

Early life before Starfleet
Klaus was born on August 2, 2247 human calendar time on the planet Earth in Berlin, Germany.

Chronology

 * 2247: Klaus is born on planet Earth in Berlin, Germany.
 * 2263: Klaus enters Starfleet Academy
 * 2267: Klaus graduates Starfleet Academy and promoted to Ensign, the first assignment is the USS Tikopai as an engineer.
 * 2272: Klaus is promoted to Lieutenant junior grade and is assigned to the USS Xerxes as an Engineer.