Next, in 1982, the History of Iran was published. 955 was retained from the original version of DDC for Iran and the number was expanded by decimal digits. Different periods and historic events have been included to meet the needs of public and school libraries, as well as, college, university and mosque l ibraries. The area notation for Iran, named Geography of Iran, was produced later in 1983. It solved the problems encountered in following DDC's instructions for use of area notations.
Expansion is again do ne by decimal digits.
Thus, the original Dewey numbers have not been disrupted in expansion. Any bibliographic database can be used without revising and changing of numbers. Besides, records for Persian materials are rarely found in international databases. Translation of DDC in the Arab countries and Iran Both Iran and the Arab countries have translated a DDC abridged edition. The Arabic translation, based on the DDC, 10th abridged edition, and the Persian translation, based on the DDC, 12th abridge d edition, were published in 1984 and 1994 respectively.