Encyclopedia of the ghetto: the unfinished project of the Lodz ghetto archivists.

Work on the encyclopaedia began in 1944. Its authors included Jews from Lódz as well as those who had been deported from Western Europe. In the introduction to the encyclopaedia, Oskar Rosenfeld wrote: “In a later period, when research on the ghetto is being conducted, such a collection, such an encyclopaedia, will provide information where a mere description of the conditions would not suffice. Words, language in the history of humanity- science has one since confirmed this theory- is a more reliable witness and source of truth than other material remembrances