Expedition photography across the ancient world

Ancient Civilizations & Origins · The Worlds Index

Every civilization, in place and time

Every ancient civilization Second City Standard covers, mapped by region and rated by how strong the archaeological record actually is.

Worlds
21
Regions
7
Span
10,000 BCE – 1600 CE

How strong the record is across this collection

  • 13 Documented Historical Record
  • 6 Archaeological Evidence
  • 2 Active Academic Debate

Every world page carries the same badge. Nothing is presented as settled that the excavation record does not settle.

Documented Historical Record

Attested in primary written sources that historians treat as reliable for this claim.

Archaeological Evidence

Supported by excavated material: stratigraphy, artifacts, dating, or site survey.

Scientific Consensus

The mainstream position across the relevant scientific literature today.

Active Academic Debate

Specialists disagree. Competing interpretations are presented side by side.

Editorial Analysis

Second City Standard's own reading of the evidence, labeled as such.

Speculative Theory

Proposed but unsupported by accepted evidence. Reported, never endorsed.

Browse the worlds

River agriculture, desert logistics, and the longest state records we have.

Where cities, writing, law and accounting first appear in the same layer.

Sea-connected states that argued about their own history in writing.

Imperial administration at continental scale, recorded by allies and enemies.

Planned cities and a script that has still not been read.

Continuous bureaucratic record-keeping, metallurgy and monumental defence.

Astronomy, calendars and monumental stone in tropical environments.

Vertical agriculture, road engineering, and record-keeping without writing.

Societies mostly described by outsiders, now being re-read from excavation.

The limit case: an island society studied for what isolation does to people.

By region

Nile & North Africa

River agriculture, desert logistics, and the longest state records we have.

Mesopotamia & the Fertile Crescent

Where cities, writing, law and accounting first appear in the same layer.

Mediterranean World

Sea-connected states that argued about their own history in writing.

Persia & Central Asia

Imperial administration at continental scale, recorded by allies and enemies.

South Asia

Planned cities and a script that has still not been read.

East Asia

Continuous bureaucratic record-keeping, metallurgy and monumental defence.

Mesoamerica

Astronomy, calendars and monumental stone in tropical environments.

South America

Vertical agriculture, road engineering, and record-keeping without writing.

Northern Europe

Societies mostly described by outsiders, now being re-read from excavation.

Pacific

The limit case: an island society studied for what isolation does to people.