sentences:  Willem Visser 't Hooft
  
  Willem Adolph Visser 't Hooft (20 September 1900 – 4 July 1985) was a Dutch theologian who became the first secretary general of the World Council of Churches in 1948 and held this position until his retirement in 1966.Visser 't Hooft was born in Haarlem, in the Netherlands and in his early adult years, was involved in Dutch student Christian movement and soon became involved internationally.