People · researcher

Claudius Ptolemy

c. 100–170 · Astronomy

Lifespan

c. 100–170

Field

Astronomy

Known For

The Almagest — the geocentric model that organised the sky for fourteen centuries.

Nationality

Roman Egyptian

Open on the People shelf — the interactive card, the filters, and everything alongside it.

From the Researchers database in Notion, last edited 2026-08-15. This page is the row, rendered by the build; nothing on it is written by hand.