Society: Arts and Science – September 23

The Nobel Prize is bestowed annually in categories as selected by Swedish and Norwegian committees in recognition of cultural or scientific advances. The 1895 will of Swedish inventor Alfred Nobel established the prizes.
Richard Adolf Zsigmondy died on this date in 1929. He was an Austrian-Hungarian chemist. He was known for his research in colloids, for which he was awarded the Nobel Prize in chemistry in 1925. The crater Zsigmondy on the Moon is named in his honour.
Sir John Boyd Orr, 1st Baron Boyd-Orr CH, DSO, MC, FRS was born on this date in 1880. He was a Scottish teacher, doctor, biologist and politician who received the Nobel Peace Prize for his scientific research into nutrition and his work as the first Director-General of the United Nations Food and Agriculture Organization (FAO). He was the co-founder and the first President (1960–1971) of the World Academy of Art and Science (WAAS).