- An aid in the study of the Ptolemaic (Macedonian-based Greek), Roman Imperial (Greco-Roman), and Byzantine rulers of Egypt based in Alexandria, this portal site is intended for all classicists and students of Hellenistic history. The House of Ptolemy web site concentrates on the Ptolemies and their world, from 331 - 30 BCE. However, since the histories of Greek rule and subsequent Roman rule ...www.houseofptolemy.org
- Highly detailed information about the life and accomplishments of Ptolemy.www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Ptolemy.html