Kazimierz Kelles-Krauz

Born

Kazimierz Radosław Elehard

(1872-03-27)March 27, 1872

Szczebrzeszyn, Congress Poland, Russian Empire

DiedJune 24, 1905(1905-06-24) (aged 33)

Pernitz, Austria-Hungary

Othernames

• Radosław
• Michał Luśnia

SpouseMaria Katarzyna née Goldsteyn

Kazimierz Kelles-Krauz
Born	Kazimierz Radosław Elehard (1872-03-27)March 27, 1872 Szczebrzeszyn, Congress Poland, Russian Empire
Died	June 24, 1905(1905-06-24) (aged 33) Pernitz, Austria-Hungary
Other names	Radosław Michał Luśnia
Spouse	Maria Katarzyna née Goldsteyn
Children	Janina
Relatives	Piotr Wysocki (uncle)
Family	Kelles-Krauz szlachta
Awards
Education
Education	University of Warsaw University of Paris
Alma mater	Sciences Po New University of Brussels
Philosophical work
Era	19th-century philosophy
Region	Central Europe
School	Marxism
Institutions	International Institute of Sociology
Notable ideas	Law of retrospective revolution

Kazimierz Radosław Elehard baron Kelles-Krauz (22 March 1872 – 24 June 1905) was a Polish philosopher, sociologist, and socialist associated with the Polish Socialist Party. He was considered one of the leading Marxist intellectuals of the late nineteenth century.

Kelles-Krauz was born in Szczebrzeszyn, Russian Poland, and died in Pernitz, Austria-Hungary.

His greatest contribution to sociology is the "law of retrospective revolution" according to which "the ideals with which each reform movement tries to replace existing social norms are always similar to the norms of a more or less distant past".

Yale's Timothy Snyder argues that Kelles-Krauz, writing two decades before Hans Kohn and Carlton Hayes, ought to be among the small cluster of turn-of-the-century thinkers regarded as the pioneers of the modern study of nationalism.