# Kepler's Laws (1609)

URL: https://germany-history.com/timeline/1609-kepler-s-laws
Location: Prague
Categories: main-event

In 1609 Johannes Kepler, imperial mathematician to Rudolf II in Prague, published Astronomia nova. He showed that planets move in elliptical orbits. His laws laid the basis for Newton's theory of gravity.

## Why it matters
It was a milestone of the Scientific Revolution.

Ruler at the time: [Rudolf II](https://germany-history.com/rulers/rudolf-ii)

## Sources
- [Wikipedia – Johannes Kepler](https://en.wikipedia.org/wiki/Johannes_Kepler)
- [Wikipedia – Astronomia nova](https://en.wikipedia.org/wiki/Astronomia_nova)
- [Encyclopaedia Britannica – Johannes Kepler](https://www.britannica.com/biography/Johannes-Kepler)