# De revolutionibus is published (1543)

URL: https://poland-history.com/timeline/1543-de-revolutionibus-is-published
Location: Nuremberg
Categories: main-event

Copernicus's De revolutionibus orbium coelestium, printed in 1543 shortly before his death, set out a heliocentric model of the universe. Within the broader Jagiellonian Age period: The union with Lithuania created one of Europe's largest states. Victory over the Teutonic Order, the rise of noble democracy and a brilliant Renaissance culture marked the Jagiellonian golden age. At this point in the timeline (1543), the governing authority was Sigismund I the Old (King of Poland). Presided over the Polish Renaissance, received the Prussian Homage in 1525 and married Bona Sforza. De revolutionibus is published mattered because it placed Polish scholars and scientists at the forefront of human knowledge. The event is placed here so readers can follow it alongside changes in government, warfare, society, religion and culture across Polish history.

## Why it matters
De revolutionibus is published mattered because it placed Polish scholars and scientists at the forefront of human knowledge.

Ruler at the time: [Sigismund I the Old](https://poland-history.com/rulers/sigismund-i-the-old)

## Sources
- [Wikipedia — De revolutionibus orbium coelestium](https://en.wikipedia.org/wiki/De_revolutionibus_orbium_coelestium)
- [Encyclopaedia Britannica topic lookup — De revolutionibus is published](https://www.britannica.com/search?query=De+revolutionibus+is+published)
- [Wikipedia — Jagiellonian dynasty (period overview)](https://en.wikipedia.org/wiki/Jagiellonian_dynasty)