Hans Kelsen

Hans Kelsen, born on October eleventh, eighteen eighty-one, was a prominent Austrian and later American jurist, legal philosopher, and political thinker. Renowned for his groundbreaking theory of law, known as the 'pure theory of law' or 'Reine Rechtslehre', Kelsen's work laid the groundwork for a value-independent description of legal systems. His expertise in constitutional law was instrumental in the creation of the 1920 Austrian Constitution, which, despite amendments, continues to be in effect today.

The rise of totalitarian regimes in Europe compelled Kelsen to leave Austria, leading him through Germany and Switzerland before finally settling in the United States in nineteen forty. Despite being hailed by contemporaries like Roscoe Pound as 'unquestionably the leading jurist of the time' in nineteen thirty-four, Kelsen's pure theory faced challenges in gaining acceptance in the U.S., and he never secured a permanent position at a law school.

From nineteen forty-two until his official retirement in nineteen fifty-two, Kelsen served in the department of politics at the University of California, Berkeley. During this period, he expanded his influential work, rewriting his concise book from nineteen thirty-four into a significantly enlarged second edition published in nineteen sixty, which was later translated into English in nineteen sixty-seven.