Jean William Fritz Piaget was a Swiss psychologist known for his work on child development. Piaget's theory of cognitive development and epistemological view are together called genetic epistemology.
Biography from Wikipedia, available under CC BY-SA 4.0.
Also born on August 9
- Whitney Houston1963 · American singer and actress
- Gillian Anderson1968 · American actress and writer
- Anna Kendrick1985 · American actress
- Melanie Griffith1957 · American actress
- Eric Bana1968 · Australian actor
- Bill Skarsgård1990 · Swedish actor and model
- Sam Elliott1944 · American actor
- Filipe Luís1985 · Brazilian association football player
Also born in 1896
- F. Scott Fitzgerald1896 · American writer
- Georgy Zhukov1896 · Soviet military leader
- Wallis Simpson1896 · Wife of Prince Edward, Duke of Windsor
- Morarji Desai1896 · Prime Minister of India from 1977 to 1979
- Oswald Mosley1896 · British fascist politician
- A. C. Bhaktivedanta Swami Prabhupada1896 · Indian spiritual teacher
- George Burns1896 · American entertainer
- Ruth Gordon1896 · American actress, playwright and screenwriter