Nobel Prize relevant fields was greater), a greater delay in awarding Nobel Prizes for women's achievements making longevity a more important factor for women (Nobel Prizes are not awarded posthumously), and a tendency to omit women from jointly awarded Nobel Prizes. Four people have received two Nobel Prizes. Marie Curie received the Physics Prize in 1903 for her work on radioactivity and the Chemistry Prize in 1911 for the isolation of pure radium, making her the only person to be awarded a Nobel Prize in two different sciences. Linus Pauling was awarded the 1954 Chemistry Prize for his research into the chemical
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.