Daniel De Leon

Daniel De Leon
De Leon in 1902
Born	December 14, 1852 Curaçao, Curaçao and Dependencies[a]
Died	May 11, 1914(1914-05-11) (aged 61) Manhattan, New York, United States
Nationality	American Dutch Spanish
Other names	Daniel de León
Alma mater	Leiden University Columbia University
Occupations	Editor Marxist Theoretician Union Organizer
Organizations	Knights of Labor Industrial Workers of the World Workers' International Industrial Union
Known for	Marxism–De Leonism
Height	5 ft 5 in (165 cm)[1]
Political party	Socialist Labor Party
Movement	American Labor Movement
Spouses	Sarah Lobo (m. died 1887) Bertha Canary ​ (m. 1892)​
Children	9, including Solon

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Daniel De Leon (/də ˈliːɒn/; December 14, 1852 – May 11, 1914), alternatively spelt Daniel de León, was a Curaçaoan-American socialist newspaper editor, politician, Marxist theoretician, and trade union organizer. He is regarded as the forefather of the idea of revolutionary industrial unionism and was the leading figure in the Socialist Labor Party of America from 1890 until the time of his death.^[2] De Leon was a co-founder of the Industrial Workers of the World and much of his ideas and philosophy contributed to the creations of Socialist Labor parties across the world, including: Australia, the United Kingdom, Canada, and the Socialist Trade and Labor Alliance.

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