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Aug 25, 1500
Nicolaus Copernicus
Polish astronomer Nicolaus Copernicus challenged he view that the sun revolved around the Earth, suggesting instead that the Earth revolves around the sun. -
Isaac Newton
English scientists Sir Isaac Newton formulated the laws of gravity and motion. -
Wilhelm Wundt
Most historians of psychology point to the year 1879 as the bginning of psychology as a modern laboratory science. In that year, German psychologist Wilhelm Wundt established his laboratory in Leipzig. -
William James
William James wrote the book Principles of Psychology. He focued on the relationships between experience and behavior. -
John B. Watson
John Watson founded the school of behaviorism, Watson defined psychology as the scientific study of observable behavior. -
Sigmund Freud
He founded the school of psychoanalysis which emphasizes the importance of unconscious motices and internal conflicts in determining human behavior. -
Kenneth and Mamie Clark
In 1946 The Clarks founded the Northside Center for Chiled Development. Kenneth and Mamie Clark's clinical work led to several studies showing the negative effect of segregation on the self-esteem of African American children. -
Plato
Plato was a student of Socrates in ancient Greece, and he recorded his teacher's advice: "Know thyself." This phrase has remained a motto of psychological study ever since. -
Aristotle
Aristotle, one of Plato's students and a Greek philosopher, raised many questions about human behavior that are still discussed . He outlined the laws of associationism, which are still at the heart of learning theory more than 2000 years later.
