# Planck's Quantum Theory (1900)

URL: https://germany-history.com/timeline/1900-planck-s-quantum-theory
Location: Berlin
Categories: main-event

On 14 December 1900 Max Planck presented his theory of energy quanta in Berlin. It marked the beginning of quantum physics. Planck received the Nobel Prize in 1918.

## Why it matters
It launched one of the most important scientific revolutions.

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

## Sources
- [Wikipedia – Max Planck](https://en.wikipedia.org/wiki/Max_Planck)
- [Wikipedia – Planck's law](https://en.wikipedia.org/wiki/Planck's_law)
- [Encyclopaedia Britannica – Max Planck](https://www.britannica.com/biography/Max-Planck)