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METHOD

How these maps are made

Each chapter links to the published maps, datasets and historical references used to reconstruct its geography. You can follow those links to see the direct sources behind the borders on the map.

Trace a map to its sources

Browse the source list for every atlas ↓

THE BASE MAP

The physical and administrative reference geography comes from Natural Earth, which is public domain. Historical layers draw on dated vector datasets, documented reconstructions and geographic information from published historical maps. The source record for each layer says which method was used; a modern reference is not presented as a period survey.

DATED GEOGRAPHY

Choose a chapter or a point on the timeline, and the geography changes with it. Historical unions, territorial divisions and occupation areas have their own source records instead of being forced into today’s country borders. When an exact dated outline is unavailable, we use the closest suitable published geography or reconstruct it from cited evidence. The source details give the reference date and any material difference from the chapter.

HOW SOURCES ARE CHECKED

A downloaded source still needs to be checked. We examine its version, reuse terms, date and territorial meaning, then check named locations inside or outside the selected outline. Limitations and corrections are recorded alongside the geometry. Islands and holes are kept, and the tolerance for any display optimisation is recorded. Readers can use the source links and reconstruction records to inspect these choices and raise questions about them.

A military front does not describe the same thing as a political boundary; an administrative reporting region and a schematic route have different meanings again. The source records keep these distinctions. The timeline’s territory graphic counts overlapping areas once to measure a share of the displayed map; it is not an equal-area geographic statistic.

Map sources by atlas

The lists below show the published sources used for each atlas. Chapter notes identify the references behind the map you are viewing; the full layer records give dates, methods and source-specific limitations. The evidence for a reconstruction may include the closest suitable published geography when an exact dated outline is unavailable.

The Rise and Fall of Rome, 264 BC – AD 476 · 13 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

Climate and Innovation: The Norse and the Aztecs, c. 790–1521 · 22 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

The Crusades, 1095–1291 · 10 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

The Mongol Empire, 1206–1294 · 15 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

The Industrial Revolution, 1750–1914 · 27 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

The Age of Revolutions, 1775–1848 · 18 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

Two Roads to Independence: Haiti 1789–1838 and Kenya 1895–1978 · 24 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

The American Civil War, 1840–1877 · 28 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

Remaking the State: Meiji Japan 1600–1912 and Post-Soviet Russia 1964–2000 · 21 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

The Russian Revolution, 1855–1924 · 23 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

Indian Independence & Partition, 1857–1964 · 15 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

The Great War, 1871–1923 · 44 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

China in Revolution, 1911–1949 · 32 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

The Soviet Union under Stalin, 1924–1953 · 23 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

The Road to War, 1931–1941 · 30 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

The War Room — WW2, 1936–1945 · 22 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

The Cold War, 1945–1991 · 23 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

The Decolonization of Africa, 1945–1994 · 19 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

Protest and Change: Second-Wave Feminism and Tunisia, 1945–2015 · 24 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

Uprooted: Refugees in Europe 1945–1960 and Indochina 1975–1990 · 39 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

The People’s Republic under Mao, 1949–1976 · 21 sources

Browse the chapters and their source notes · Full layer records and reconstruction methods

UNCERTAINTY IS NAMED

The evidence for casualties supports ranges, so that is how we present the figures. A debated turning point is identified as debated. In each chapter’s study layer, the account of causes and effects explains why historians hold their views and where they disagree, instead of merely asserting a connection.

SITES OF MEMORY

Atrocities appear on the maps as memorials, with sober copy. They are never quiz questions, used for point-scoring or gamified. There are no exceptions to this house rule.

PRIMARY SOURCES AND COPYRIGHT

Primary sources quoted in the IB notes are public domain (old enough, or official government documents) or openly licensed. Each quotation gives its creator, date and origin. Modern in-copyright writing appears only in short quotations for criticism and teaching, with full citations. Photographs come from public-domain or openly licensed collections and are credited on the source. We never reproduce IB papers, mark schemes or guide text.

HOW THE IB ALIGNMENT IS DONE

In the eight atlases with IB notes, each chapter is tagged to the parts of the new IB History course it helps with (first exams May 2028). We describe that alignment in our own words. Maps of History is independent: it is not affiliated with or endorsed by the International Baccalaureate Organization, and IB course names describe alignment only. What the atlases do for each paper →

NO THIRD-PARTY TRACKING

We count page views, atlas opens and chapters read ourselves to help improve the atlases. These are first-party counts; neither this page nor any other has ad pixels, third-party analytics or third-party cookies. The privacy page lists exactly what is kept.

Using these maps

Maps of History made the map composition and original educational material. The underlying geography remains subject to its own source terms, including, where specified, public-domain, Creative Commons and Open Database Licence terms. Source details provide required credits, change notices and available derived-data downloads. Attribution to us does not replace the underlying licences.

You may embed any dated map free of charge using the embed code on its page, keeping the attribution link. Teachers may use the maps in their own class materials and slides with the credit “Maps of History, mapsofhistory.com”. For any other use of our original material — print, books, products or commercial sites — write to hello@mapsofhistory.com for permission.

FURTHER READING

Each atlas has a shelf of standard works behind it. We give the authors and titles so you can find them at your library; the shelf is a starting point, not a bibliography.

The Rise and Fall of Rome, 264 BC – AD 476

THE ATLAS INDEX →

Climate and Innovation: The Norse and the Aztecs, c. 790–1521

THE ATLAS INDEX →

The Crusades, 1095–1291

THE ATLAS INDEX →

The Mongol Empire, 1206–1294

THE ATLAS INDEX →

The Industrial Revolution, 1750–1914

THE ATLAS INDEX →

The Age of Revolutions, 1775–1848

THE ATLAS INDEX →

Two Roads to Independence: Haiti 1789–1838 and Kenya 1895–1978

THE ATLAS INDEX →

The American Civil War, 1840–1877

THE ATLAS INDEX →

Remaking the State: Meiji Japan 1600–1912 and Post-Soviet Russia 1964–2000

THE ATLAS INDEX →

The Russian Revolution, 1855–1924

THE ATLAS INDEX →

Indian Independence & Partition, 1857–1964

THE ATLAS INDEX →

The Great War, 1871–1923

THE ATLAS INDEX →

China in Revolution, 1911–1949

THE ATLAS INDEX →

The Soviet Union under Stalin, 1924–1953

THE ATLAS INDEX →

The War Room — WW2, 1936–1945

THE ATLAS INDEX →

The Cold War, 1945–1991

THE ATLAS INDEX →

The Decolonization of Africa, 1945–1994

THE ATLAS INDEX →

Protest and Change: Second-Wave Feminism and Tunisia, 1945–2015

THE ATLAS INDEX →

Uprooted: Refugees in Europe 1945–1960 and Indochina 1975–1990

THE ATLAS INDEX →

The People’s Republic under Mao, 1949–1976

THE ATLAS INDEX →

THE FREE PRINTABLE STUDY GUIDE

Get a printable atlas study guide of your choice free. I’ll send you a few short letters, then one when a new atlas opens. That’s all. — Paul

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