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...

Brian Bóruma mac Cennétig was an Irish king who ended the domination of the High Kingship of Ireland by the Uí Néill. Building on the achievements of his father, Cennétig mac Lorcain, and especially his elder brother, Mathgamain, Brian firs...

Pope Sylvester II, born Gerbert d'Aurillac, was a prolific scholar, teacher, and Pope. He endorsed and promoted study of Arab/Greco-Roman arithmetic, mathematics, and astronomy, reintroducing to Europe the abacus and armillary sphere, which...

Rajaraja I was a Chola emperor from present day south India who ruled over the Chola kingdom of medieval Tamil Nadu (parts of southern India), parts of northern India, two thirds of Sri Lankan territory, Maldives and parts of East Asia, bet...

Vladimir the Great was a grand prince of Kiev, ruler of Kievan Rus' in (980–1015). Vladimir's father was the prince Sviatoslav of the Rurik dynasty. After the death of his father in 972, Vladimir, who was then prince of Novgorod, was forced...

Basil II Porphyrogenitus, nicknamed the Bulgar Slayer, was senior Byzantine Emperor for almost 50 years (10 January 976 – 15 December 1025), having been a junior colleague to other emperors since 960. He and his brother Constantine were nam...

Alhazen (Ibn al-Haytham) was a Muslim scientist, polymath, mathematician, astronomer and philosopher, described in various sources as either Persian or Arab. He made significant contributions to the principles of optics, as well as to physi...

Sei Shonagon (lesser councilor of state Sei), was a Japanese author, poet and a court lady who served the Empress Teishi (Sadako) around the year 1000 during the middle Heian period. She is the author of The Pillow Book. Shonagon is also...

Emperor Zhenzong was the third emperor of the Song Dynasty of China. His personal name was Zhao Heng. He reigned from 997 to 1022. Zhenzong was the son of Emperor Taizong. His temple name means "True Ancestor". Zhenzong's reign was noted...

Leif Ericson was a Norse explorer known to be the first European to have landed in North America (presumably in Newfoundland, Canada). It is believed that Leif was born about 970 in Iceland, the son of Erik the Red, a Norwegian explorer and...

Abu Rayhan Biruni was a Persian mathematician, physicist, scholar, encyclopedist, philosopher, astronomer, astrologer, traveller, historian, pharmacist, and teacher, who contributed greatly to the fields of mathematics, philosophy, medicine...

Murasaki Shikibu (Lady Murasaki) (c.978–c.1014 or 1025) was a Japanese novelist, poet and lady-in-waiting at the Imperial court during the Heian period. She is best known as the author of The Tale of Genji, written in Japanese between about...

Avicenna is the Latinate form of Ibn-Sina. He was a Persian polymath regarded both in Europe and the Middle East as one of the most significant thinkers and writers of the Islamic Golden Age. He is known to have written around 450 works acr...

Tancred of Hauteville was an eleventh-century Norman petty lord about whom little is known. His historical importance comes entirely from the accomplishments of his sons and later descendants. He was a minor noble near Coutances in the Cote...

Guido of Arezzo (991/992 – after 1033) was a music theorist of the Medieval era. He is regarded as the inventor of modern musical notation (staff notation) that replaced neumatic notation; his text, the Micrologus, was the second-most-widel...