How did industrialization create new social classes as well as the conditions of the development of socialism

Industrialization create new social class in shor time it was industrial workers which strated to be named 'proletariates' that measn that new social class which wasn't created in natura; market way in many ares (like UK were many of workers before were small farmers or craftsmen) become a laroge group of society which wasn't owning anything, the socilaist ideas which wanted to apease proletariate therefore had big social group to target