The period between 1901 and 1925 signals the rise and fall of the Socialist Party of America which depended on skilled workers. In 1906, with the publication of The Jungle, the most popular voice of socialism in the early 20th century, Upton Sinclair gave them ignorant "...Negroes and the lowest foreigners --Greeks, Roumanians, Sicilians, and Slovaks" hell.

There was a divergence in status within