Definitions

The Northern or Baltic Crusades were military campaigns organised by popes and western rulers to convert pagans to Christianity in the 12th to 15th century. Unlike in the Holy Land, where military campaigns were aimed at liberating former...

Saint Columbanus or “Columbán” (543-615 CE) was one of the greatest missionaries of the early Catholic Church who led the “Hiberno-Scottish mission” of conversion across much of what is now Western Europe in the late 6th and early 7th century...

The play Libation Bearers was written by one of the greatest of all Greek tragedians Aeschylus (c. 525-455 BCE). Winning first prize at the Dionysia competition in 458 BCE, Libation Bearers was the second play in the trilogy The Oresteia...

The Kingdom of Jerusalem was a state created in 1099 CE by Crusaders and western settlers after the First Crusade (1095-1102 CE). With Jerusalem as its capital, the kingdom was the most important of the four Crusader States in the Middle...

Derbent (sometimes "Derbend" or "Darbend") is an ancient city located along the Caspian Sea in what is present-day Russia. Although the area in and around Derbent has been continuously inhabited since at least the 8th century BCE, Shah Yazdegerd...

Hedeby (Old Norse: Heiðabýr; German: Haithabu) was an important stronghold in Viking Age Denmark from the 8th-11th centuries CE and, along with Birka in present-day Sweden, it was the most important Viking trading center in Europe. During...

The Knights Templar were established c. 1119 and given papal recognition in 1129. It was a Catholic medieval military order whose members combined martial prowess with a monastic life to defend Christian holy sites and pilgrims in the Middle...

The term Kabbalah refers specifically to the form of Jewish mysticism that became widespread in the Middle Ages. However, in recent decades it has essentially become a generic term for the entirety of Jewish mystical thought. Literally meaning...

Canyon de Chelly or Canyon de Chelly National Monument is a protected site that contains the remains of 5,000 years of Native American inhabitation. Canyon de Chelly is located in the northeastern portion of the US state of Arizona within...

Prambanan (Javanese: Rara Jonggrang) is a Hindu temple complex dating from the 9th century CE located near Bokoharjo, on the island of Java in Indonesia. Prambanan is the largest Hindu temple in Indonesia and one of the largest Hindu temples...