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Hans Kelsen

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Hans Kelsen was a famous thinker who studied law.

Portrait de Dante
Portrait de Dante

He was born in a city called Prague. Later, his family moved to Vienna. Kelsen studied very hard at the University of Vienna. He wrote many books about how rules and governments work.

Kelsen had a big idea called the "pure theory of law." This idea helped people study laws without using personal feelings. He also helped write the 1920 Austrian Constitution. This set of rules is still used in Austria today.

Session of the Austrian Constitutional Court, around 1925
Session of the Austrian Constitutional Court, around 1925

Kelsen also helped create a special type of court. This is called a constitutional court. It is a court that checks if new rules follow the main laws of the land. Many countries in Europe now use this model.

Life became difficult for Kelsen in Europe. He had to leave Austria because of unfair leaders. He lived in Germany and Switzerland before moving to the United States in 1940. He taught at a school in California. Even though he lived far from home, his ideas about law changed the world.

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Wien - Akademisches Gymnasium (1).JPG
Session of the Austrian Constitutional...
File:Portrait de Dante.jpg
Portrait de Dante.jpg
File:John Marshall by Henry Inman, 1832.jpg
John Marshall by Henry Inman, 1832.jpg
File:Joseph Raz - 20090224.jpg
Joseph Raz - 20090224.jpg
File:Georg Jellinek.jpg
Georg Jellinek.jpg
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