Its birth echoed the imminent needs for the struggle of the American Communist Party, but it was also deeply influenced and promoted by the histories of capitalist reformism and social democracy.

• 它的产生主要出于美国共产党现实斗争的需要，但其前出现的受到马克思主义影响的资产阶级改良主义和社会民主主义的历史学，也对它的产生起了重要的促进作用。