The Copernican Revolution
1543 CE
Publication of the heliocentric model by Nicolaus Copernicus.
Historical Context
The vision of the cosmos had been dominated since Antiquity by Ptolemy's geocentric system (Earth at the center of the universe), supported by the dogma of the Catholic Church.
The Event
In 1543, on his deathbed, Polish canon Nicolaus Copernicus published 'De revolutionibus orbium coelestium', mathematically placing the Sun at the center of the universe (heliocentrism).
Key Figures
Nicolaus Copernicus (astronomer and canon), Georg Joachim Rheticus (his disciple who urged him to publish).
Aftermath
Although the immediate impact was small due to the book's mathematical complexity, it laid the foundations for modern physics and the astronomy of Kepler and Galileo.
Legacy & Culture
The term 'Copernican revolution' now denotes any radical paradigm shift. It symbolizes the painful but necessary separation of empirical science from religious dogma.
Historiography
Thomas Kuhn, in 'The Structure of Scientific Revolutions', uses this event as the paradigmatic example of a scientific crisis forcing the abandonment of an old model.
Sources and References
Thomas Kuhn, La Structure des révolutions scientifiques
Archives de l'Observatoire de Paris