Jean Piaget
1896 – 1980Developmental psychologist who created the theory of cognitive development, identifying four stages of intellectual growth in children.
Famous Birthdays on August 9
13 notable people were born on August 9.
August 9 is the birth date of several notable figures from various areas. These include developmental psychologist Jean Piaget, who was born in 1896, author P. L. Travers, born in 1899, and Finnish writer and illustrator Tove Jansson, born in 1914. Tennis champion Rod Laver and former Ukrainian president Leonid Kuchma, both born in 1938, also share this birth date. In total, 13 notable individuals were born on August 9.
19th Century2 people
P. L. Travers
1899 – 1996Australian-British author who created the beloved character Mary Poppins in a series of children's books that inspired the famous Disney film adaptation.
20th Century11 people
Tove Jansson
1914 – 2001Finnish author and illustrator who created the beloved Moomin characters and stories, which became internationally famous children's literature. She was also an accomplished painter and wrote novels for adults.
Leonid Kuchma
1938Ukraine's second president who served from 1994 to 2005 and oversaw the country's transition from Soviet rule to independence.
Juanes
1972Colombian rock musician who has won 26 Latin Grammy Awards and is known for hits like 'Me Enamora' and 'A Dios le Pido.'
Eric Bana
1968Actor known for his roles in major films including 'Hulk', 'Troy', and 'Munich', as well as his early career in Australian comedy.
Romano Prodi
1939Italian economist and politician who served two terms as Prime Minister and was President of the European Commission from 1999 to 2004.
John Key
1961New Zealand politician and former investment banker who served as Prime Minister from 2008 to 2016, leading the country through economic recovery following the global financial crisis.
Li Jiawei
1981Chinese-born table tennis player who became a Singaporean citizen and won the country's first Olympic medal in 48 years with a team silver in 2008. She was ranked among the world's top players and played a key role in Singapore's table tennis success.
table tennis playerChina
Rod Laver
1938Australian tennis legend who won 11 Grand Slam singles titles and is considered one of the greatest players of all time, with Wimbledon's Centre Court named in his honor.
tennis playerAustralia
Leon Bailey
1997Jamaican footballer who plays as a winger for Aston Villa in the Premier League. He represented Jamaica internationally after switching from England's youth teams.
association football playerJamaica
Ravshan Irmatov
1977Internationally renowned FIFA football referee who officiated at multiple World Cups and major tournaments between 2003-2019. He is considered one of the most respected referees in world football.
Maria Guleghina
1959Internationally acclaimed soprano who performed leading roles at major opera houses including La Scala, Metropolitan Opera, and Royal Opera House.
opera singerUkraine
Frequently Asked Questions
Who is the most famous person born on August 9?
Jean Piaget, the Swiss psychologist known for his work in child development and cognitive psychology, was born on August 9, 1896. His theories on children's intellectual development have influenced educational practices worldwide.
Which famous children's book authors were born on August 9?
Two children's authors share this birthday: P. L. Travers, known for creating Mary Poppins, was born in 1899. Tove Jansson, the Finnish author and illustrator of the Moomin series, was born in 1914.
Are there any famous athletes born on August 9?
Yes, Rod Laver, the Australian tennis player with 11 Grand Slam singles titles and the only player to achieve the Grand Slam twice, was born on August 9, 1938. The main court at the Australian Open is named after him.