Homo Sapiens 1900 is a 1998 Swedish documentary film directed by Peter Cohen, about various eugenics methods that were in practice in Europe during the first part of the 20th century.
Positive eugenics aims towards creating better humans by careful mating, based on one's genetic makeup.
Negative eugenics, on the other hand, seeks to prevent those deemed inferior from reproducing, and thus not impeding man's evolution.
He trains field workers to visit poor houses, prisons and mental institutions to document, and eventually eliminate through negative eugenics, inferior hereditary characteristics.
Unlike the two aforementioned countries, where sterilization was compulsory, in Sweden a 'democratic approach' is pursued, under the motto of 'opposition shall be overcome through persuasion'.
The Institute's chairman, Eugen Fischer, says its task is to 'investigate the connection between heredity, environment and crossbreeding, and to promote social measures which benefit racially sound individuals'.
Though genetics research is gradually beginning to challenge some of the claims made by racial hygiene theories, the Kaiser Wilhelm Institute reduces 'genetics' to just another 'auxiliary science' subordinate to eugenics.