Hudud al-'Alam

Hudud ul-'alam min al-mashriq ila al-maghrib (حدود العالم من المشرق الی المغرب) meaning "The Limits of The World from The East to The West" is an [[Persian] tenth century geography book written by an unknown author from Jauzjan, north-western of modern Afghanistan.

Finished in 982 CE, it was dedicated to the Ghurid King Abu ul-Harith Muhammad ibn Ahmad.

The Russian orientalist Toumansky found the manuscript with the unique copy of this text in 1892 in Bukhara through a learned Baha'i. The facsimile edition with introduction and index was published by W. Barthold in 1930; the thoroughly commented English translation was made by V. Minorsky in 1937, and a printed Persian text by M. Sotude in 1961.

The sections of this geographical treatise which describe the margins of Islamic oecumene, are of the greatest historical importance.