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

Late Mongols: Present 1368 CE 1580 CE

Cahokia - Emergent Mississippian I: Absent 750 CE 899 CE

Early Angkor: Present 802 CE 1100 CE

Khmer Kingdom: Absent 1432 CE 1593 CE

Kingdom of Norway II: Absent 1263 CE 1380 CE

Ayyubid Sultanate: Absent 1171 CE 1250 CE

Roman Empire - Dominate: Absent 285 CE 394 CE

French Kingdom - Late Valois: Absent 1450 CE 1588 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 
1545 CE 1546 CE (Kanem-Borno)
Ali II Zainami Dunama V Ngumaramma
556 BCE 539 BCE (Neo-Babylonian Empire)
Nabonidus Cyrus II
Overturn External Invasion External Inteference
1848 CE 1888 CE (Benin Empire)
Adolo Ovonramven
Intra-Elite
1410 CE 1421 CE (Hausa bakwai)
Umaru Dauda
1696 CE 1725 CE (Russian Empire, Romanov Dynasty I)
Peter I Catherine I
Predecessor Assassination
- (Gupta Empire)
Narasimhagupta Kumara-Gupta III
1976 CE 1982 CE (Late United Mexican States)
José López Portillo y Pacheco Miguel de la Madrid
758 CE 764 CE (Nara Kingdom)
Junnin Empress Shōtoku (formerly Empress Kōken)
Overturn Intra-Elite

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 
403 BCE 256 BCE (Eastern Zhou)
Fragmentation of Eastern Zhou (Warring States)
Elite Downward Mobility Civil War Fragmentation External Conquest
900 CE 1100 CE (Wari Empire)
End of Wari Settlements
Population Decline Population Collapse
1911 CE 1912 CE (Late Qing)
Chinese Revolution
Population Decline Elite Downward Mobility Elite Extermination Uprising Revolution Successful Revolution Civil War Ruler Depose Constitution Change
1528 CE 1537 CE (Songhai Empire - Askiya Dynasty)
Succession Crisis
Ruler Assassination Ruler Depose
990 CE 1019 CE (Medang Kingdom)
Unrest and Collapse of Medang
Elite Downward Mobility Elite Extermination Uprising Fragmentation Ruler Assassination
583 CE 700 CE (Eastern Turk Khaganate)
Division of Turkic Khaganate into western and eastern halves
Population Decline Epidemic Elite Downward Mobility Civil War Fragmentation Ruler Assassination
1644 CE 1683 CE (Great Ming)
Fall of the Ming Dynasty
Population Decline Epidemic Uprising Revolution Civil War Capital Loss External Conquest Ruler Depose
983 CE 1062 CE (Buyid Confederation)
Decline of Buyid Dynasty
Elite Downward Mobility Civil War Fragmentation External Conquest 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)

Jan. 1, 1920 Lynching (race) in Mississippi (MS), Tylertown: 2 were killed.   Paul A. Gilje, Riots In The United States

May 24, 2022 Terrorism (education) in Texas (TX), Uvalde, Uvalde: 22 were killed.   ACLED: The Armed Conflict Location & Event Data

Oct. 1, 1868 Riot (race) in Louisiana (LA), Opelousas: 7 were killed.   Hartford Daily Courant Or The Hartford Courant

Sept. 1, 1875 Riot (race) in Mississippi (MS), Clinton: 40 were killed.   Paul A. Gilje, Riots In The United States

Sept. 1, 2009 Terrorism in Michigan (MI), Owosso: 2 were killed.   The New York Times

July 1, 1863 Riot (political) in New York (NY), New York City: 1000 were killed.   Hartford Daily Courant Or The Hartford Courant

May 1, 1969 Riot (political) in California (CA), Berkeley: 1 was killed.   Paul A. Gilje, Riots In The United States

Sept. 1, 1917 Lynching (race) in Texas (TX), Goose Creek: 1 was killed.   Paul A. Gilje, Riots In The United States

and 1941 more ...