Stanisław Mendelson was a Polish

Poland

Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

 socialist politician and publicist of Jewish descent. He was an activist of Polish and international workers' movement.

He was one of the main activists and creators of the first programme of the Polish Socialist Party

Polish Socialist Party

The Polish Socialist Party was one of the most important Polish left-wing political parties from its inception in 1892 until 1948...

. In 1875-1878 he helped organize socialist groups in Warsaw

Warsaw

Warsaw is the capital and largest city of Poland. It is located on the Vistula River, roughly from the Baltic Sea and from the Carpathian Mountains. Its population in 2010 was estimated at 1,716,855 residents with a greater metropolitan area of 2,631,902 residents, making Warsaw the 10th most...

. In 1878 Mendelson emigrated to Switzerland

Switzerland

Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....

, and later lived in France

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 and the United Kingdom

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

. He was the co-founder and editor of the first Polish socialist magazines - Równość, Przedświt and Walka Klas.

In 1880 he was accused, together with other activists, in a judicial process with socialists in Kraków

Kraków

Kraków also Krakow, or Cracow , is the second largest and one of the oldest cities in Poland. Situated on the Vistula River in the Lesser Poland region, the city dates back to the 7th century. Kraków has traditionally been one of the leading centres of Polish academic, cultural, and artistic life...

. In 1882-1884 he organized socialist groups in Poznań

Poznan

Poznań is a city on the Warta river in west-central Poland, with a population of 556,022 in June 2009. It is among the oldest cities in Poland, and was one of the most important centres in the early Polish state, whose first rulers were buried at Poznań's cathedral. It is sometimes claimed to be...

 and was eventually imprisoned by Prussian authorities. Being a skilled organizer and publicist, Mendelson personally befriended many foremost European socialists - Friedrich Engels

Friedrich Engels

Friedrich Engels was a German industrialist, social scientist, author, political theorist, philosopher, and father of Marxist theory, alongside Karl Marx. In 1845 he published The Condition of the Working Class in England, based on personal observations and research...

, Karl Liebknecht

Karl Liebknecht

was a German socialist and a co-founder with Rosa Luxemburg of the Spartacist League and the Communist Party of Germany. He is best known for his opposition to World War I in the Reichstag and his role in the Spartacist uprising of 1919...

, Eduard Bernstein

Eduard Bernstein

Eduard Bernstein was a German social democratic theoretician and politician, a member of the SPD, and the founder of evolutionary socialism and revisionism.- Life :...

, Karl Kautsky

Karl Kautsky

Karl Johann Kautsky was a Czech-German philosopher, journalist, and Marxist theoretician. Kautsky was recognized as among the most authoritative promulgators of Orthodox Marxism after the death of Friedrich Engels in 1895 until the coming of World War I in 1914 and was called by some the "Pope of...

, Paul Lafargue

Paul Lafargue

Paul Lafargue was a French revolutionary Marxist socialist journalist, literary critic, political writer and activist; he was Karl Marx's son-in-law, having married his second daughter Laura. His best known work is The Right to Be Lazy...

, Georgi Plekhanov

Georgi Plekhanov

Georgi Valentinovich Plekhanov was a Russian revolutionary and a Marxist theoretician. He was a founder of the Social-Democratic movement in Russia and was one of the first Russians to identify himself as "Marxist." Facing political persecution, Plekhanov emigrated to Switzerland in 1880, where...

and others.

Works

• Kwestyja polska i polityka koła polskiego (1893)
• Historia ruchu komunistycznego we Francji w 1871 (1904)