February 19, 1473 was the date of Nicolaus Copernicus’ birth. The Polish astronomer is best known for the posthumously published book, De Revolutionibus Orbium Coelestium, in which he outlined a heliocentric model of the universe.

So what has all this to do with the history of psychology? According to the “Today in the History of Psychology” website, “a scientific psychology rests on the assumptions generated by the Copernican revolution,” namely, the “promoting [of] objectivity in the study of human affairs.” Continue reading Happy 535th Nick! →