The Thirty Years' War

The Thirty Years' War was one of the longest and most destructive wars in European history. It lasted from 1618 to 1648 and was fought mainly in what is now Germany. The war started as a fight between Catholic and Protestant groups but grew to involve most of the major countries in Europe. Millions of people died, and entire towns were destroyed. The peace treaty that ended it changed Europe forever.

How the War Started

The war began in 1618 when Protestant leaders in Prague threw two Catholic officials out of a window. This strange event is called the Defenestration of Prague. The argument was about religious freedom. Protestant states wanted to worship in their own way, but the Catholic emperor tried to stop them. Soon, armies from many countries joined the fighting on different sides.

The Peace of Westphalia

After 30 years of terrible fighting, everyone was exhausted. In 1648, the war ended with a peace agreement called the Peace of Westphalia. It said that each ruler could choose the religion for their own land. It also created the idea that countries should respect each other's borders. This agreement is still considered one of the most important peace treaties in history.

Fun Facts

• Some areas of Germany lost more than half their population during the war.
• The word 'defenestration' means throwing someone out of a window.
• The Peace of Westphalia is often called the beginning of modern international relations.

Did You Know?

The Thirty Years' War was so destructive that some parts of Germany took over a hundred years to recover their population.