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horizon

(Encyclopedia)horizon, in astronomy, roughly circular line bounding an observer's view of the surface of the earth where the sky and earth seem to meet. This is the visible horizon. At sea the visible horizon is a ...

Balkh

(Encyclopedia)Balkh bälkh [key], town, N Afghanistan, on a dried-up tributary of the Amu Darya River. One of the world's oldest cities, it is the legendary birthplace of the prophet Zoroaster. Because it was locat...

Pahlevi, Iranian shahs

(Encyclopedia)Pahlevi: see Reza Shah Pahlevi; Muhammad Reza Shah Pahlevi. ...

Ahmad Mirza

(Encyclopedia)Ahmad Mirza äkhmädˈ mērzäˈ [key], 1898–1930, shah of Persia (1909–25), son of Muhammad Ali. The last of the Qajar dynasty, he came to power as a result of a coup against his father. A regent...

Bandar Abbas

(Encyclopedia)Bandar Abbas bändärˈ äb-bäsˈ [key], city, S Iran, on the Strait of Hormuz at the mouth of the Persian ...

Aga Muhammad Khan

(Encyclopedia)Aga Muhammad Khan or Agha Muhammad Khan both: äˈgämo͞ohämˈmäd khän [key], 1742–97, shah of Persia, founder of the Qajar dynasty. He was emasculated by family enemies at the age of five. He w...

Firdausi

(Encyclopedia)Firdausi or Ferdowsi both: fərdouˈsē [key], c.940–1020, principal Persian poet, author of the Shah Namah [the book of kings], the great Persian epic. His original name was Abul Kasim Mansur; he i...

celestial horizon

(Encyclopedia)celestial horizon, one axis of the altazimuth coordinate system. It is the great circle on the celestial sphere midway between the observer's zenith and nadir; it divides the celestial sphere into two...

Firishta

(Encyclopedia)Firishta or Ferishta both: fĭrĭshtăˈ [key], c.1560–c.1620, Indian Muslim historian. His given name was Muhammad Kasim Hindu Shah. Under the patronage of the shah of Bijapur, he wrote a history o...

Nasir ad-Din

(Encyclopedia)Nasir ad-Din näˈsər äd-dēn [key], 1831?–1896, shah of Persia (1848–96). He and his able vizier, Mirza Taqi Khan, were responsible for shaking Persia from a long period of inertia. He traveled...