Celsus library: Did you mean...?

Roman architecture was nothing if not eclectic. From ingenious underfloor heating to gravity-defying arches, the Romans added to the Classical repertoire such grandiose structures as the triumphal arch, basilica, amphitheatre, and city tower...

Hypatia of Alexandria (c. 370 - March 415) was a female philosopher and mathematician, born in Alexandria, Egypt possibly in 370 (although some scholars cite her birth as c. 350). Little is known of her life but her dramatic death at the...

Ashurbanipal's collection of Sumerian and Babylonian proverbs formed part of the famous Library of Ashurbanipal (7th century BCE) established at Nineveh for the express purpose of preserving the knowledge of the past for future generations...

Assyria was the region located in the ancient Near East which, under the Neo-Assyrian Empire, reached from Mesopotamia (modern-day Iraq) through Asia Minor (modern Turkey) and down through Egypt. The empire began modestly at the city of Ashur...

Eratosthenes (l. c. 276-195 BCE) was a Greek astronomer, geographer, mathematician, and poet best known for being the first to calculate the circumference of the earth and its axial tilt. He is also recognized for his mathematical innovation...

Ancient Mesopotamian literature developed c. 2600 BCE after scribes, who had formerly been record keepers, began composing original works in the region of Sumer. The Sumerians invented writing c. 3500 BCE, refined the script c. 3200 BCE...

In ancient Greek medicine illness was initially regarded as a divine punishment and healing as, quite literally, a gift from the gods. However, by the 5th century BCE, there were attempts to identify the material causes for illnesses rather...

The Christian doctrine of the Trinity (from the Latin trinus, meaning "threefold") professes that there is one God, but three eternal and consubstantial persons (aspects): the Father, the Son, and the Holy Spirit. The Father is the God of...

The Romans assimilated earlier Greek science for their own purposes, evaluating and then accepting or rejecting that which was most useful, much as they did in other fields such as warfare, art, and theatre. This assimilation of Greek thought...

Abbeys were a striking feature of medieval urban and rural landscapes. Their layout and architecture reflected their purpose as cut-off monastic retreats which, conversely, also served and inspired their local communities. Although evolving...