These links contains background information for understanding Plato and his works from modern sources. The first two links are online encyclopedia articles (peer reviewed and open access) on Plato while the next three links are to encyclopedias available in print and electronically.
The first link is to Diogenes Laërtius' Lives of the Eminent Philosophers (3rd Century A.D.) in Greek while the second link is an English translation of the Lives of the Eminent Philosophers. The next two links are entries on Plato from the Suda (10th century A.D.) which contains the Byzantine Greek text and an English translation.
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