On September 16, 1980, the renowned Swiss cognitive and developmental psychologist, Jean Piaget, passed away in Geneva at the age of 84. Jean Piaget is remembered as one of the most influential figures in developmental psychology and education throughout the twentieth century. Initially beginning as an apprentice at the Natural History Museum of Neuchâtel, Switzerland, Piaget studied mollusc species and published over 40 papers on various topics in zoology before being appointed a lectureship in natural history and philosophy of science at the University of Neuchâtel in 1921. The same year, he wrote the first version of the first of his four major works, The Language and Thought of the Child. Piaget is best known for his theories involving the stages of cognitive development that humans and other organisms undergo, which revolutionized the way that psychology and education were thought of and presented in the Western world. His books, such as The Language of Thought of the Child, Science of Education and Genetic Epistemology, summarize theessoried, detailed quantitative research that he conducted with children over the course of several decades. Piaget received major awards from organizations such as the Center for Advanced Study in the Behavioral Sciences and the American Psychological Association. In addition to his ground-breaking work in cognitive and developmental psychology, he also worked in epistemology and the philosophy of science. He founded the International Center for Genetic Epistemology in Geneva in 1955, alongside resarcher, writer, and development psychologist Bärbel Inhelder, and was also an observing member of the Institut International de Philosophie - Geneva. The immense contributions that Piaget made to the field of psychology will continue to have far-reaching impact throughout the scientific community.