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Date of Birth
He was born in Neuchatel, Switzerland -
Published first scientific paper
At age 11, while he was a pupil at Neuchâtel Latin high school, he wrote a short notice on an albino sparrow. -
Marriage
Jean Piaget marries Valentine Chatenay in Geneva. -
It's a Girl!
Piaget's first child is born. -
It's another Girl!
Second daughter is born -
It's a Boy!
His first son is born -
Chairman of Sociology at Geneva
Sociology at Geneva from 1939 to 1952. -
Director
Became director of International Center for Epistemology in Geneva. -
Intellectual Development
Defined the four stages of intellectual development. -
Death
Piaget Dies at the age of 84.