Betty Williams
Photo gallery
1 (of 2) Betty Williams (left) and Mairead Corrigan (right) of the Northern Irish Peace People movement, 31 October 1977.
Photo: H. Christoph/ullstein bild via Getty Images
2 (of 2) A letter from Betty Williams and Mairead Corrigan to the Norwegian Nobel Committee after the news that they had been awarded the 1976 Nobel Peace Prize.
Credit: The Norwegian Nobel Institute.
Nobel Prizes and laureates
Six prizes were awarded for achievements that have conferred the greatest benefit to humankind. The 12 laureates' work and discoveries range from proteins' structures and machine learning to fighting for a world free of nuclear weapons.
See them all presented here.