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Nicolaus Copernicus

Nicolaus Copernicus transformed early modern astronomy by developing a mathematical planetary system in which Earth moved around the Sun. His De revolutionibus orbium coelestium, published in 1543, did not immediately settle every astronomical problem, but it changed the framework in which those problems were discussed.

Why Nicolaus Copernicus matters in astronomy

Copernicus is central to the transition from inherited geocentric models to heliocentric astronomy. His work became the point of departure for Kepler, Galileo and later Newtonian celestial mechanics.

15matching database records
Copernicus, NicolausName2, Name1 format

Nicolaus Copernicus timeline in the database

Birth of Nicolaus Copernicus

Copernicus, Nicolaus · Poland · Thorn

Birth of Nicolaus Copernicus

Mathematical and Astronomical Education

Copernicus, Nicolaus · Poland · Krakow

Receives training that supports his later work on planetary motion.

University of Krakow Studies

Copernicus, Nicolaus · Poland · Krakow

Begins university studies in mathematics, astronomy and related liberal arts.

Assistant to Domenico Maria Novara

Copernicus, Nicolaus · Poland · Bologna

Works with astronomer Domenico Maria Novara and develops practical observing experience.

Studies at Bologna

Copernicus, Nicolaus · Poland · Bologna

Begins legal studies while continuing astronomical observations in Bologna.

Commentariolus

Copernicus, Nicolaus · Poland · Frombork

Circulates a short manuscript outlining a heliocentric planetary system.

Early Heliocentric Outline

Copernicus, Nicolaus · Poland · Frombork

Presents an early account of Earth moving around the Sun.

Copernican System

Copernicus, Nicolaus · Poland

Outlines the Copernican system of the solar system

On the Revolutions of the Heavenly Spheres

Copernicus, Nicolaus · Poland

Publication of "On The Revolutions of the Heavenly Spheres"

Copernican Model

Copernicus, Nicolaus · Poland · Frombork

His published model challenges the traditional geocentric arrangement.

Heliocentric System

Copernicus, Nicolaus · Poland · Frombork

Places Earth among the planets moving around the Sun.

De revolutionibus Published

Copernicus, Nicolaus · Poland · Nuremberg

His major astronomical work De revolutionibus is published in 1543.

Death of Copernicus

Copernicus, Nicolaus · Poland · Frombork

His death coincides with publication of De revolutionibus.

Death of Nicolaus Copernicus

Copernicus, Nicolaus · Poland · Frombork

Dies at Frombork in the same year his major work appears.

On the Revolutions Published

Copernicus, Nicolaus · Poland · Nuremberg

The book presents a mathematical heliocentric model of the cosmos.

Related astronomy topics

Sources and editorial provenance

Compiled and edited by World History Database

Historical chronology compiled from the World History Database and checked against major scientific and historical reference sources.

Last reviewed: September 2026.