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Didache
The Didache (Koine Greek: διδαχή), also known as “The Teaching,” or, “The Teaching of the Twelve Apostles,” is an enigmatic primitive Church document describing early Christian ethics, practices...

Definition
Pyrrho
Pyrrho of Elis (l. c. 360 to c. 270 BCE) was a Greek skeptic philosopher credited with founding the school of Pyrrhonism which taught that one must resist making judgments or stating conclusions because sense perception did not correlate...

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Seventh Crusade
The Seventh Crusade (1248-1254 CE) was led by the French king Louis IX (r. 1226-1270 CE) who intended to conquer Egypt and take over Jerusalem, both then controlled by the Muslim Ayyubid Dynasty. Despite the initial success of capturing Damietta...

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Saint Peter
Saint Peter the Apostle was a well-known figure in early Christianity. Although there is no information on the life of Peter outside the Bible, in the Christian tradition, he is often depicted as the first on many occasions: the first to...

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Council of Clermont
The Council of Clermont in central France was held in November 1095 and witnessed Pope Urban II's (r. 1088-1099) historic call for the First Crusade (1095-1102) to capture Jerusalem for Christendom from its Muslim occupiers. The Pope's speech...

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Sextus Empiricus
Sextus Empiricus (l. c. 160 to c. 210 CE) was a Greek Skeptic who developed the ideas of the earlier Greek Skeptic philosopher Pyrrho of Elis (l. c. 360 to c. 270 BCE) who claimed that tranquility of mind was attainable by suspending judgment...

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Alexander Severus
Alexander Severus served as the Roman emperor from 222 CE until his untimely death in 235 CE. At the urging of his mother, aunt, and grandmother, Emperor Elagabalus named his cousin Alexianus (the future Alexander Severus) as his heir in...

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Constans II
Constans II (aka Konstans II) was emperor of the Byzantine Empire from 641 to 668 CE. Sometimes known as Constans Pogonatos (“the Bearded”), he came to the throne by a series of unlikely events and his empire was immediately challenged...

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Romanos IV Diogenes
Romanos IV Diogenes ruled the Byzantine Empire from 1068 to 1071 CE. He was a military emperor, and his policies and campaigns served to shore up Byzantine defenses against the Seljuk Turks. However, in the aftermath of the Byzantine defeat...

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Michael Psellos
Michael Psellos (1018 - c. 1082 CE) was a Byzantine historian, writer, and intellectual. Michael acted as courtier and advisor to several Byzantine emperors, and he was the tutor of Michael VII. Writing between 1042 and 1078 CE, his texts...