Karl Landsteiner ("tuberculinum prestinum"). He also published a number of papers, five of them being published in Dutch by the Royal Academy of Sciences. Yet working conditions proved to be not much better than in post-war Vienna. So Landsteiner accepted the invitation that reached him from New York, initiated by Simon Flexner, who was familiar with Landsteiner's work, to work for the Rockefeller Institute. He arrived there with his family in the spring of 1923. Throughout the 1920s Landsteiner worked on the problems of immunity and allergy. In 1927 he discovered new blood groups: M, N and P, refining the work he
2001 Nobel Peace Prize 2001 Nobel Peace Prize The 2001 Nobel Peace Prize was awarded to the United Nations and Kofi Annan for "their work for a better organized and more peaceful world". In 2001, its centennial year, the Nobel Committee decided that the Peace Prize was to be divided between the United Nations (UN) and Kofi Annan. Annan was awarded the Peace Prize for having revitalized the UN and for having given priority to human rights. The Nobel Committee also recognized his commitment to the struggle to contain the spreading of the HIV virus in Africa and his declared opposition to international terrorism.