Simplify the following text for a Grade 9 native English-speaking person.
Original: Sir Edmund Percival Hillary , KG , ONZ , KBE ( 20 July 1919 â `` 11 January 2008 ) , was a New Zealand mountaineer , explorer and philanthropist .
Simplified: Sir Edmund Percival Hillary , ( born July 20 , 1919 , died January 11 , 2008 ) was a New Zealand mountaineer and explorer .