Eugene Mikhailovich Kulischer (Russian: Евгений Михайлович Кулишер; September 4, 1881 – April 2, 1956) was a Russian-American sociologist; an authority on demography, migration and manpower; and an expert on Russia.
Like his father, Michael Kulischer, a noted Russian historian, he insisted that no migration occurs in isolation.
His brother Alexander, "when crossing the demarcation line, was arrested by Pétain's gendarmes and died in a concentration camp".
[4] At the heart of his work is a simple axiom: individual short-distance movements have a combined action that creates great population shifts.
It never ceases, it affects every people, but at a given moment it sets in motion only a small number of each population; hence the illusion of immobility.
[10] As Jackson and Howe recently observed in evaluating the migrations' impact: E. M. Kulischer once reminded his readers that in A.D. 900 Berlin had no Germans, Moscow had no Russians, Budapest had no Hungarians, Madrid was a Moorish settlement, and Constantinople had hardly any Turks.