E. was born on 30 September 1884 in Keidan, Kovno Gubernia, Lithuania, into a family that staged yichus for rabbis and gaonim. A sister-a child of the poet David Einhorn. Until age seventeen he learned Talmud, then an extern, later he went away to Paris, where he completed a middle school, and in 1911 -- the department of French literature in a historical-philological facultat for the Sorbonne.

His journalistic activity began in 1905. Since 1915 he has been a permanent collaborator for "Heynt" in Warsaw, where he publishes under the name of "Eyner", articles and critiques about Yiddish theatre.

He translated Moliere's comedy "Der karger (The Miser)" (publisher "Di tseyt", Warsaw, 1921), that at the same time was staged in the Central Theatre by Zigmund Turkow.

Zalmen Reyzen -- "Lexicon of Yiddish Literature", Vol. I, p. 80.