Rashidun: Did you mean...?

Tombstone of Caliph Umar (634 - 644 CE) of the Rashidun Caliphate, in Al-Masjid al-Nabawi, Medina. The grave of Umar can be seen from the first window on the right.

A map showing the conquest of Byzantine Egypt by the Rashidun Caliphate (640-642 CE), led by Amr ibn al-Aas and al-Zubayr ibn al-Awamm.

Position of troops on the eve of the Battle of Yarmouk (636 CE). Rashidun army is depicted as red, while the Byzantines are represented by blue. Solid colored blocks are infantry, while colored and white blocks are cavalry.

A beautified calligraphic rendition of the name of Ali, the fourth Rashidun Caliph (r. 656-661 CE).

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 overthrown...

Hagia Sophia in Istanbul, constructed 532-537, continues to be revered as one of the most important structures in the world. Hagia Sophia (Greek Ἁγία Σοφία, for 'Holy Wisdom') was designed to be the major basilica of the Byzantine Empire...

The Etchmiadzin Cathedral (also spelled "Echmiatsin,” “Echmiadzin,” and “Edjmiadsin”) is located in the city of Etchmiadzin (also referred to as Vagharshapat), Armavir Province in what is now present-day Armenia. It is geographically situated...

Caesarea Maritima was a city built over 2,000 years ago (c. 22-10 BCE) on the coast of the Eastern Mediterranean. With Roman engineering and largesse, Herod the Great (r. 37-4 BCE) accomplished this feat by constructing a whole metropolis...

Cyprus is a large island located in the eastern Mediterranean Sea, east of Greece, south of Asia Minor, west of the Levant, and north of Egypt. The naming of the island is a matter of dispute amongst historians. One theory suggests that...

The Mamikonians were a powerful clan group who were influential in Armenian political and military affairs from the 1st century BCE onwards. They rose to particular prominence from c. 428 CE to 652 CE in the half of Armenia ruled by the Sasanian...