Unify the steppe first
1206 as a political prerequisite -- a historical observation.
Darker cells mean a higher score for this topic on that metric.
Scale85
Intensity82
Duration70
Tech shift35
Political impact80
Cultural memory60
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Last reviewed Sources & creditsMedia creditsMethodology
Quick answers
Are the scores a ranking of nations or armies?
No. Scores are browsing aids inside an era-bounded atlas — not live league tables of countries.
How many died?
About 20-40 million is a commonly cited scholarly-range band across Eurasia, with very high uncertainty. Some local chronicle figures are impossible as censuses. Use ranges.
Did they "conquer the world"?
They built the largest contiguous land empire, then stopped or failed at Japan, the Mamluk Levant, and parts of Southeast Asia. Sea and desert edges mattered.
What was Baghdad 1258?
Hulagu's forces took the city and ended Abbasid caliphal rule there. Chronicle death figures are huge and disputed; the political shock is not.
How was Korea involved?
Mongol campaigns against Goryeo ran through the 1230s-50s. Later, Goryeo was forced to support Kublai's Japan expeditions of 1274 and 1281 -- a Korean tragedy inside a Japanese legend.
What is Pax Mongolica?
A later phrase for relative security on some overland routes in the mid-to-late thirteenth century. It does not cancel the conquest deaths.
Campaigns followed political insult, succession, and seasonal grass. The 1241 European ride and the 1258 Baghdad campaign are the two western names English readers know; the Goryeo war is the one Korean readers know.
Failed amphibious war against Japan is the limit-case of a land empire at sea.
Principles
Cities can be destroyed or taxed
The chronicles show both outcomes; historians argue the pattern.
Succession interrupts campaigns
1241 and 1260 as exhibits.
Sea is a different problem
Japan 1274/81.
Empire splits into governments
Khanates, not an eternal horde.
Steps
- Unify
1206: a steppe state with a name.
Title first, then the long war.
- Break neighbours
Xia, Jin, Khwarezm.
Each war taught the next chroniclers terror.
- Ride west
1230s-41: Rus' and Central Europe.
A campaign that ended with a funeral in Karakorum.
- Take the caliphal city
1258 Baghdad.
A political end more certain than any death integer.
- Hit limits
Ain Jalut, Japan, stubborn Goryeo then submission.
Edges are part of the story.
- Become dynasties
Yuan and khanates.
Conquest that lasts becomes tax.
Diagrams
A split diagram after the 1260s -- the honest map.
A schematic of Goryeo yards to Hakata -- the East Asian inset.
Limits
Numbers
Global totals are bands; some chronicle figures are rhetorical.
Source bias
Winners' later Yuan histories and losers' city laments need each other.
No how-to
No raiding, siege, or command instruction.
Siege stories are chronicles of terror and negotiation. They are not instructions.
Withdrawal in 1242 is a political-military fact, not a miracle tale only.