Attalus is an online historical reference site focused on the Hellenistic world and the Roman Republic from 323 to 30 B. C. It provides detailed, year-by-year event lists and timelines, with material covering the fourth, third, second, and first centuries B.

C. The site helps readers explore ancient history through organized source guides, an overview of available texts, and indexes of names and references. It also links to online translations and offers new English translations of works that have not been readily accessible in that language, including writings by Eusebius, Memnon, and Polyaenus.

Additional resources include Latin texts, Greek and Latin poetry, inscriptions and papyri, and a concordance of Greek inscriptions. Visitors can learn about Attalus, the king, browse related sites, and consult background information and guidance on using the collection. Attalus is designed for readers seeking accessible pathways into primary sources and historical evidence, and it invites users to report errors by email.

The site’s latest listed addition is Cicero’s Letters to Friends, books 1–12