🛠️ Invention or technique

Anaximander's world map

Mapa del mundo de Anaximandro

Date
c. 550 BCE · confidence low
Place
Miletus, Aydın, Turkey
Credited to
Anaximander of Miletus
Field
Cosmos & Earth

⚠️ Disputed: the sources disagree.

What it is

Anaximander is said to have drawn the first chart of the inhabited world in the Greek world, a circular Earth ringed by ocean and split into Europe and Asia. No copy survives; it is known through later authors.

The attribution comes from Diogenes Laertius and Agathemerus, centuries later; the map does not survive and its exact form is a reconstruction. It is accepted that an early Ionian chart existed, not what it looked like.

What it led to

  • Ionian mapmaking based on observation and on sailors' reports
  • later corrections by Hecataeus and by Herodotus, who mocked circular maps
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Sources✓ verified 2026-11-06