Seshat: Global History Databank

✓ the most current and comprehensive body of knowledge about human history
✓ collects what is currently known about the social and political organization of human societies over time
✓ offers the means to study the past through well-established scientific techniques
✓ founded in 2011 and thriving ever since

Seshat

General Variables
26 variables 8888 records

Alternative Name (Identity and Location)

Polity Peak Years (Temporal Bounds)

Polity Capital (Identity and Location)

Polity Language (Language)

Polity Religion (Religion)

Degree of Centralization (Temporal Bounds)

Succeeding Entity (Supra-cultural relations)

Relationship to Preceding Entity (Supra-cultural relations)

and 18 more ... for 542 Polities

Social Complexity Variables
77 variables 26068 records

Polity Territory (Social Scale)

Polity Population (Social Scale)

Settlement Hierarchy (Hierarchical Complexity)

Irrigation System (Specialized Buildings: polity owned)

Merit Promotion (Bureaucracy Characteristics)

Formal Legal Code (Law)

Road (Transport Infrastructure)

Postal Station (Information / Postal System)

and 69 more ... for 619 Polities

Warfare Variables
49 variables 17536 records

Bronze (Military use of Metals)

Javelin (Projectiles)

Battle Axe (Handheld Weapons)

Sword (Handheld Weapons)

Horse (Animals used in warfare)

Small Vessels (canoes, etc) (Naval technology)

Shield (Armor)

Wooden Palisade (Fortifications)

and 41 more ... for 376 Polities

Human Sacrifice
357 records

Greco-Bactrian Kingdom: Absent 248 BCE 130 BCE

Naqada II: Present 3550 BCE 3301 BCE

New Palace Crete: Absent 1700 BCE 1451 BCE

Orokaiva - Pre-Colonial: Absent 1734 CE 1883 CE

Egypt - Dynasty 0: Absent 3300 BCE 3101 BCE

Kansai - Kofun Period: Present 250 CE 537 CE

Egypt - Inter-Occupation Period: Absent 404 BCE 343 BCE

Egypt - Mamluk Sultanate II: Absent 1348 CE 1411 CE

and 349 more ... coded for 323 Polities

CrisisDB

Power Transitions
Overturn / Intra-Elite / Military Revolt / Popular Uprising / Separatist Rebellion / External Invasion / External Interference / Predecessor Assassination 
1543 CE 1547 CE (Kingdom of Saloum)
Samba Lambour Ndiaye Séni Ndiémé Diélèn Ndiaye
1685 CE 1689 CE (England Tudor-Stuart)
James II William III (co-ruler with Mary 1689–94)
Overturn Intra-Elite Military Revolt Popular Uprising External Invasion External Inteference
399 CE 420 CE (Sasanid Empire I)
Yazdgard I Bahram V
Overturn Intra-Elite Predecessor Assassination
1412 CE (Sind - Samma Dynasty)
Jam Kran Jam Sikander
Overturn Predecessor Assassination
1466 CE 1475 CE (Late Mongols)
no one Mandughulun
1920 CE 1921 CE (Interwar Austria)
Michael Mayr Johannes Schober
Overturn Intra-Elite
1974 CE 1977 CE (United States of America - Contemporary)
Gerald R. Ford Jimmy Carter
824 CE 827 CE (Tang Dynasty II)
Jingzong of Tang (Li Zhan, Ching Tsung) Wenzong of Tang (Li Han, Wen Tsung)
Overturn Intra-Elite Predecessor Assassination

and 3439 more ... coded for 264 Polities

Crisis Consequences
Population Decline / Population Collapse / Elite Downward Mobility / Elite Extermination / Uprising / Revolution / Successful Revolution / Civil War / Lasted > a Century / Capital Loss / External Conquest / Ruler Assassination / Ruler Depose / Constitution Change / Labor Change / Unfree Labor Change / Suffrage / Public Goods Change / Religion Change 
180 CE 189 CE (Kansai - Yayoi Period)
Civil War of Wa
Elite Downward Mobility Civil War
546 BCE 453 BCE (Jin)
Civil War
Elite Downward Mobility Civil War Lasted > a Century Fragmentation External Conquest
1884 CE 1942 CE (Orokaiva - Colonial)
Colonial occupation of Orokaiva lands
Fragmentation External Conquest Constitution Change
865 CE 866 CE (Byzantine Empire I)
Rise of Macedonioan Emperors
Ruler Assassination
1153 CE 1214 CE (Jin Dynasty)
Unrest & flooding
Population Decline Elite Extermination Uprising Civil War External Conquest Ruler Assassination Ruler Depose
1455 CE 1487 CE (Plantagenet England)
Wars of the Roses
Population Decline Epidemic Elite Downward Mobility Uprising Civil War Ruler Assassination Ruler Depose
1236 CE 1242 CE (Kievan Rus)
Disintegration of the Kievan Rus
Elite Downward Mobility Fragmentation External Conquest Ruler Depose
1325 CE 1361 CE (Chagatai Khanate)
Fragmentation of Chagatai Khanate
Uprising Fragmentation External Conquest Ruler Assassination Ruler Depose

and 161 more ... coded for 153 Polities

🇺🇸 US Political Violence Database
Date / Violence Type / Violence Subtype(s) / Location(s) / Fatalities / Narrative / Source(s)

June 1, 1998 Lynching (race) in Texas (TX): 1 was killed. -

July 12, 1976 Terrorism in California (CA), Fullerton: 7 were killed.   TVPDB: The Violence Project database of mass shootings in the United States (Version 7)

Feb. 1, 1919 Riot (race) in Georgia (GA), Blakely: 4 were killed.   The New York Times

Jan. 13, 2022 Terrorism in California (CA), Los Angeles, Los Angeles: 1 was killed.   ACLED: The Armed Conflict Location & Event Data

May 1, 1919 Riot (race) in Georgia (GA), Milan: 2 were killed. -

April 1, 1913 Riot (labor) in New Jersey (NJ), Patterson: 1 was killed.   Paul A. Gilje, Riots In The United States

Sept. 1, 2011 Terrorism (political) in Nevada (NV), Carson City: 5 were killed.   AP: The Associated Press

March 1, 2013 Terrorism (political) in Texas (TX), Austin: 3 were killed.   Reuters

and 1941 more ...