Theon of Alexandria: Did you mean...?

The Hellenistic World (from the Greek word Hellas for Greece) is the known world after the conquests of Alexander the Great and corresponds roughly with the Hellenistic Period of ancient Greece...

Mediterranean trade increased exponentially at the turn of the first millennium. During Rome's zenith, goods of all sorts began to move in all directions. As a common traveler aboard merchant ships, Paul...

The Battle of Actium (2 September 31 BCE, fought in the Ionian Sea off Actium, Greece) was the decisive engagement of the civil war fought between Octavian Caesar (l. 63-14 CE, later known as Augustus, r. 27 BCE - 14 CE) and the...

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...

Galen (129-216 CE) was a Greek physician, author, and philosopher, working in Rome, who influenced both medical theory and practice until the middle of the 17th century CE. Owning a large, personal library, he wrote hundreds of medical...

Ptolemy XIII Theos Philopator (The Father-loving God, born 62/61 BCE, died 47 BCE) was pharaoh of Egypt from 51 BCE until his death. His reign began as co-ruler with his sister, the famous Cleopatra VII, following the...

Alexander Helios (40 BCE – c. late 1st century BCE) was a member of the Ptolemaic dynasty, the second oldest son of Cleopatra VII (69 BCE – 30 BCE) and the twin brother of Cleopatra Selene II (40 BCE – 5 BCE). He spent the majority...

Proclus of Athens (c. 412-485 CE) was a prolific Platonic philosopher whose main aim was the seemingly impossible task of defending traditional Greek polytheism at the time when his contemporary culture was almost completely dominated...

Ancient Greek astronomy was the study of the universe to understand how it functioned and why apart from the established theistic model that claimed all things were ordered and maintained by the gods. Ancient Greek astronomers...

There were many famous women of early Christianity who made significant contributions to the development of the faith but have since been largely forgotten. Some have been canonized by the Church or recognized...