Aḥmad ibn Ṭūlūn (Arabic: أحمد بن طولون; ca. 20 September 835 – 10 May 884) was the founder of the Tulunid dynasty that ruled Egypt and Syria between 868 and 905. Originally a Turkic slave-soldier, in 868 Ibn Tulun was sent by the Abbasid caliph as governor to Egypt. Within four years Ibn Tulun had established himself as a virtually independent ruler by evicting the caliphal fiscal agent, Ibn al-Mudabbir, taking over control of Egypt's finances, and establishing a large military force personally loyal to himself. This process was facilitated by the volatile political situation in the Abbasid court and the preoccupation of the Abbasid regent, al-Muwaffaq, with the wars against the Saffarids and the Zanj Rebellion. Ibn Tulun also took care to establish an efficient administration in Egypt. After reforms to the tax system, repairs to the irrigation system, and other measures, the annual tax yield grew markedly. As a symbol of his new regime, he built a new capital, al-Qata'i, north of the old capital Fustat.
Tulun (Russian: Тулун; IPA: [tʊˈlun]) is a town in Irkutsk Oblast, Russia, located on the Iya River (Angara's basin), 390 kilometers (240 mi) northwest of Irkutsk. Population: 44,611 (2010 Census); 51,848 (2002 Census); 52,903 (1989 Census).
It was founded in the second half of the 18th century as a village in the Iya Valley. With the construction of the Trans-Siberian Railway in the early 20th century, Tulun grew into an important trade center. It was administrated as a town between 1922 and 1924, before being granted town status permanently in 1927.
Within the framework of administrative divisions, Tulun serves as the administrative center of Tulunsky District, even though it is not a part of it. As an administrative division, it is incorporated separately as the Town of Tulun—an administrative unit with the status equal to that of the districts. As a municipal division, the Town of Tulun is incorporated as Tulun Urban Okrug.
Tulun may refer to: