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 8878 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 535 Polities

Social Complexity Variables
77 variables 25102 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 17537 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 377 Polities

Human Sacrifice
357 records

Elam - Early Sukkalmah: Absent 1900 BCE 1701 BCE

Songhai Empire - Askiya Dynasty: Present 1493 CE 1590 CE

Ostrogothic Kingdom: Absent 493 CE 554 CE

Khmer Kingdom: Absent 1432 CE 1593 CE

Erligang: Present 1650 BCE 1251 BCE

Andronovo: Absent 1800 BCE 1401 BCE

Himyar I: Absent 270 CE 340 CE

Ptolemaic Kingdom II: Absent 217 BCE 32 BCE

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 
1519 CE 1520 CE (Adal Sultanate)
Usurper 4 Usurper 5
Overturn Intra-Elite Predecessor Assassination
1839 CE 1861 CE (Ottoman Empire IV)
Abdulmecid I Abdulaziz
237 BCE 216 BCE (Anurādhapura I)
Sena and Guttika Asela
Overturn Military Revolt
1348 CE 1358 CE (Chagatai Khanate)
Bayan Qulï Tughlugh Timur
Overturn Intra-Elite Military Revolt External Invasion Predecessor Assassination
743 CE 775 CE (Byzantine Empire I)
Constantine V (restored) Leo IV, the Khazar
978 CE 1026 CE (Pala Empire)
Vigrahapala II Mahipala I
944 CE 968 CE (Early Angkor)
Rājendravarman II Jayavarman V
1045 CE 1068 CE (Heian)
Go-Reizei Go-Sanjō

and 3439 more ... coded for 262 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 
11 BCE 9 CE (Western Han Empire)
Rebellions and Wang Mang usurpation
Elite Downward Mobility Uprising Ruler Assassination
184 CE 220 CE (Eastern Han Empire)
Yellow Turban and Five Pecks of Rice rebellions
Population Decline Epidemic Elite Downward Mobility Elite Extermination Uprising Revolution Civil War Fragmentation
1261 CE 1262 CE (Icelandic Commonwealth)
Norweigan Conquest of Iceland and the end of the Commonwealth
Elite Downward Mobility External Conquest Constitution Change
2150 BCE (Egypt - Late Old Kingdom)
Collapse of Old Kingdom state
Population Decline Elite Downward Mobility Revolution Successful Revolution Civil War Fragmentation Constitution Change
523 CE 535 CE (Northern Wei)
Rebellions and Civil War
Uprising Civil War Fragmentation Ruler Assassination Ruler Depose
1193 CE 1260 CE (Ayyubid Sultanate)
Decline and fall of Ayyubid dynasty
Population Decline Uprising Fragmentation External Conquest Ruler Depose
1810 CE (Rattanakosin)
Coup
Uprising Capital Loss Ruler Assassination 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)

March 1, 1952 Terrorism in Nebraska (NE), Merriman: 3 were killed.   The New York Times

Oct. 1, 1864 Riot (political) in Pennsylvania (PA), Philadelphia: 1 was killed.   Hartford Daily Courant Or The Hartford Courant

Jan. 1, 1962 Riot (race) in Mississippi (MS), Jackson: 1 was killed. -

July 1, 1917 Riot (labor) in Missouri (MO), Flat River: 1 was killed.   Hartford Daily Courant Or The Hartford Courant

July 1, 1871 Riot (ethnic) in New York (NY), New York City: 56 were killed.   Paul A. Gilje, Riots In The United States

May 1, 2022 Terrorism (race) in New York (NY), New York City, Queens: 1 was killed.   ACLED: The Armed Conflict Location & Event Data

May 1, 1919 Lynching (race) in Mississippi (MS), Pickens: 2 were killed.   Paul A. Gilje, Riots In The United States

Nov. 1, 1900 Riot (political) in Colorado (CO), Denver: 2 were killed.   Paul A. Gilje, Riots In The United States

and 1917 more ...