Thomas Edison,a well-known American scientist and inventor,was born in a small town in the west of America on Feb11,1947.He was deeply interested in reading thanks to his mother's excellent training method to him.Having so many inventions,Edison makes great contributions to human civilization and social development.He died on Oct.8,1931 and people all over America mourned him for a minute on Oct.21,1931 by turning off their lights.