The Persian Encyclopedia

It was initially published under the supervision of Gholamhossein Mosahab, who started the project in 1955 in the Franklin Book Programs office in Tehran.

Mosahab left the project after the first volume (words starting with Alef to Seen) was published in 1966.

The first part (Sheen to Lām) was published in 1978, ten years after the first volume.

The Iranian revolution in 1979, the death of Mosahab in the same year, and the takeover of the assets of the Franklin office in Tehran by the government delayed further publication.

[1] The three volumes were republished with minor changes by Amir Kabir Publishers in 2002 (ISBN 964-303-044-X).