Oscar Ulrik Bernhardin Olsson, (born in Helsingborg 4 July 1877-Danderyd 25 January 1950) is regarded as the father of study circles.
Oscar Ulrik Bernhardin Olsson, born in Helsingborg on the 4th of July 1877 and died in Danderyd on 25th of January 1950. He is regarded as the father of study circles.