Simplify the following text for a Grade 8 native English-speaking person.
Original: Trygve Halvdan Lie ( ; 16 July 1896 -- 30 December 1968 ) was a Norwegian politician , labor leader , government official and author .
Simplified: Trygve Halvdan Lie ( July 16 , 1896 â `` December 30 , 1968 ) was a Norwegian politician .