Muhammad was the founder of Islam. According to Islamic doctrine, he was a prophet and God's messenger, sent to present and confirm the monotheistic teachings preached previously by Adam, Abraham, Moses, Jesus, and other prophets. He is vie...

Abu Bakr As-Siddiq, popularly known by his nickname Abu Bakr was a senior companion (Sahabi) and the father-in-law of the Islamic prophet Muhammad. He ruled over the Rashidun Caliphate from 632–634 CE when he became the first Muslim Caliph...

Umar, also spelled Omar, Umar ibn Al-Khattab, Umar Son of Al-Khattab, was one of the most powerful and influential Muslim caliphs (rulers) in history. He was a companion of the Islamic prophet Muhammad. He succeeded Abu Bakr (632–634) as th...

Known as Saint Aidan of Lindisfarne, St Aidan the Apostle of Northumbria (died 651), was the founder and first bishop of the monastery on the island of Lindisfarne in England. A Christian missionary, he is credited with restoring Christiani...

Bishop of Utrecht, Apostle of the Frisians, and son of St. Hilgis, born in Northumbria, 658; died at Echternach, Luxemburg, 7 Nov., 739. Willibrord made his early studies at the Abbey of Ripon near York, as a disciple of St. Wilfrid, and th...

Bede, also referred to as Saint Bede or the Venerable Bede, was a monk at the Northumbrian monastery of Saint Peter at Monkwearmouth, today part of Sunderland, England, and of its companion monastery, Saint Paul's, in modern Jarrow (see Wea...

Born to a noble family of Wessex, England, as Wynfrid or Wynfrith, Boniface (in Latin, Bonifatius) is known as the "Apostle of Germany" for his work in Christianizing that country. First a benedictine monk and then ordained as a pr...

Isaac of Nineveh also remembered as Isaac the Syrian and Isaac Cyrus was a Seventh century bishop and theologian best remembered for his written work. He is also regarded as a saint in the Eastern Orthodox Church, which the feast day of Jan...

Al-Mansur was the second Abbasid Caliph from 136 AH to 158 AH (754 AD – 775 AD). He is generally regarded as the real founder of the Abbasid Caliphate. In 762 he founded as new imperial residence and palace city Madinat as-Salam (the cit...

Abd al-Rahman I was the founder of a Muslim dynasty that ruled the greater part of Iberia for nearly three centuries (including the succeeding Caliphate of Córdoba). The Muslims called the regions of Iberia under their dominion al-Andalus....

Padmasambhava, The Lotus Born, was a sage guru from Oddiyana na who is said to have transmitted Vajrayana Buddhism to Bhutan and Tibet and neighbouring countries in the 8th century. In those lands he is better known as Guru Rinpoche ("Preci...

Irene of Athens, Byzantine empress (797-802). She served (780-90) as regent for her son, Constantine VI, and later was made (792) joint ruler. Devoted to the Orthodox Church, she bent most of her efforts to suppressing iconoclasm. In 797 Ir...

Leo III, Saint, pope (795–816), a Roman; successor of Adrian I. He was attacked about the face and eyes by members of Adrian's family, who hoped to render him unfit for the papacy. Leo recovered and fled (799) to Charlemagne's protection at...

Abd-ar-Rahman III was the Emir and Caliph of Córdoba (912–961) of the Ummayad dynasty in al-Andalus. Called al-Nasir li-Din Allah ("the Defender of God's Faith"), he ascended the throne in his early 20s, and reigned for half a century as th...

Abu 'l-Qasim Ferdowsi Tusi, or Ferdowsi was a Persian poet and the author of Shahnameh ("Book of Kings"), which is the world's longest epic poem created by a single poet, and the national epic of Greater Iran. Ferdowsi is celebrated as t...