Brockhaus and Efron Encyclopedic Dictionary

The Encyclopedic Dictionary Brockhaus and Efron (Russian Энциклопедическiй Словарь Брокгауза и Ефрона ) is a Russian encyclopedia.

It was written in the years 1890 to 1906 and was a collaboration of the publishers Friedrich Arnold Brockhaus of Leipzig and Ilya Abramovich Jefron from Saint Petersburg. It included a small version of 35 volumes and the complete edition, 86 volumes of 121 240 articles, 7,800 images and 235 maps. At the writing of the encyclopedia appeared with well-known Russian scientist Dmitri Ivanovich Mendeleev as Vladimir Sergeyevich Solovyov, Semyon Vengerov Afanasievich and Andrej Nykolaewytsch Beketov. The Encyclopedia was to some extent conceived as State encyclopedia of the Russian Empire and Russian counterpart to the Brockhaus Encyclopedia and Encyclopaedia Britannica.