In 1869 he resigned his Western Union operator's job to devote more time to his inventions
[DOC] [TLE] Biography of Thomas Edison | Simply Knowledge [PAR] His parents who were delighted when he uttered his first word soon ... At the age 
of 11, when most boys think of nothing more than fun and games, Al had a very 
..... left his job as a telegrapher and devoted himself full time to his inventions.