Original: Lester Bowles '' Mike '' Pearson , PC , OM , CC , OBE ( 23 April 1897 â '' 27 December 1972 ) was a Canadian professor , historian , civil servant , statesman , diplomat , and politician , who won the Nobel Peace Prize in 1957 for organizing the United Nations Emergency Force to resolve the Suez Canal Crisis .
Simplified: Lester Bowles '' Mike '' Pearson , PC , OM , CC , OBE ( April 23 , 1897 â '' December 27 , 1972 ) was the 14th Prime Minister of Canada from 1963 to 1968 . He won the Nobel Peace Prize in 1957 for organizing the first peacekeeping force .