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Byzantine Empire
Definition by Mark Cartwright

Byzantine Empire

The Byzantine Empire, often called the Eastern Roman Empire or simply Byzantium, existed from 330 to 1453 CE. With its capital founded at Constantinople by Constantine I (r. 306-337 CE), the Empire varied in size over the centuries, at one...
Ottoman Empire
Definition by Syed Muhammad Khan

Ottoman Empire

The Ottoman Sultanate (1299-1922 CE as an empire; 1922-1924 CE as caliphate only), also referred to as the Ottoman Empire, written in Turkish as Osmanlı Devleti, was a Turkic imperial state that was conceived by and named after Osman (l...
Mali Empire
Definition by Mark Cartwright

Mali Empire

The Mali Empire (1240-1645 CE) of West Africa was founded by Sundiata Keita (r. 1230-1255 CE) following his victory over the kingdom of Sosso (c. 1180-1235 CE). Sundiata's centralised government, diplomacy and well-trained army permitted...
Sasanian Empire
Definition by Alonso Constenla Cervantes

Sasanian Empire

The Sasanian Empire (224-651 CE, also given as Sassanian, Sasanid or Sassanid) was the last pre-Islamic Persian empire, established in 224 CE by Ardeshir I, son of Papak, descendant of Sasan. The Empire lasted until 651 CE when it was...
Songhai Empire
Definition by Mark Cartwright

Songhai Empire

The Songhai Empire (aka Songhay, c. 1460 - c. 1591 CE) replaced the Mali Empire (1240-1645 CE) as the most important state in West Africa (covering modern southern Mauritania and Mali). Originating as a smaller kingdom along the eastern...
Ghana Empire
Definition by Mark Cartwright

Ghana Empire

The Ghana Empire flourished in West Africa from at least the 6th to 13th century CE. Not connected geographically to the modern state of Ghana, the Ghana Empire was located in the western Sudan savannah region (modern southern Mauritania...
Seleucid Empire
Definition by Joshua J. Mark

Seleucid Empire

The Seleucid Empire (312-63 BCE) was the vast political entity established by Seleucus I Nicator (“Victor” or “Unconquered”, l. c. 358-281 BCE, r. 305-281 BCE), one of the generals of Alexander the Great, after Alexander's...
Gupta Empire
Definition by Dola RC

Gupta Empire

The Gupta Empire stretched across northern, central and parts of southern India between c. 320 and 550 CE. The period is noted for its achievements in the arts, architecture, sciences, religion, and philosophy. Chandragupta I (320 &ndash...
Achaemenid Empire
Definition by Peter Davidson

Achaemenid Empire

East of the Zagros Mountains, a high plateau stretches off towards India. While Egypt was rising up against the Hyksos, a wave of pastoral tribes from north of the Caspian Sea was drifting down into this area and across into India. By the...
Egyptian Empire
Definition by Joshua J. Mark

Egyptian Empire

The Egyptian Empire rose during the period of the New Kingdom (c. 1570- c. 1069 BCE), when the country reached its height of wealth, international prestige, and military might. The empire stretched from modern-day Syria in the north to modern-day...