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

Susa I: Unknown 4300 BCE 3801 BCE

Kansai - Yayoi Period: Absent 300 BCE 249 CE

Middle Merovingian: Absent 543 CE 686 CE

Early Mongols: Present 1126 CE 1205 CE

Cahokia - Sand Prairie: Present 1275 CE 1399 CE

Badarian: Absent 4400 BCE 3800 BCE

Konya Plain - Late Chalcolithic: Unknown 5500 BCE 3001 BCE

Warring States Japan: Absent 1467 CE 1567 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 
1832 CE (Ethiopia Kingdom III)
Gebre Krestos Sahle Dengel
Overturn Intra-Elite Predecessor Assassination
869 CE 870 CE (Abbasid Caliphate I)
Al-Mutadhi Al-Mutamid
Overturn Intra-Elite Military Revolt Predecessor Assassination
167 BCE 165 BCE (Yehuda)
Mattathias Judas Maccabaeus
1656 CE 1667 CE (Portuguese Empire - Early Modern)
Afonso VI Pedro II
Overturn Intra-Elite
1496 CE 1498 CE (Egypt - Mamluk Sultanate III)
Al-Nasir Muhammad IV Al-Zahir Qansuh I
Overturn Military Revolt Predecessor Assassination
511 CE 527 CE (Early Classic Tikal)
Ix Kalo'mte' Ix Yo K'in ("Lady of Tikal"), Co-ruled with Kaloomte' B'alam ("Curl-Head") Bird Claw ("Animal Skull I", "Ete I")
912 BCE 891 BCE (Neo-Assyrian Empire)
Adad-Nirari II Tukulti-Ninurta II
1848 CE 1856 CE (British East India Company)
The Earl of Dalhousie The Earl of Canning

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 
540 CE 554 CE (East Roman Empire)
Sixth Century Crisis & Justinian Plague
Epidemic Capital Loss
232 BCE 187 BCE (Magadha - Maurya Empire)
Fall of Mauryan Empire
Fragmentation External Conquest Ruler Assassination
1899 CE 1914 CE (Chuuk - Late Truk)
European Proxy Conflicts
Capital Loss External Conquest Constitution Change
1050 CE 1203 CE (Later Wagadu Empire)
Decline of Wagadu
Elite Downward Mobility Lasted > a Century Capital Loss External Conquest Religion Change
1519 CE 1521 CE (Aztec Empire)
Spanish conquest of the Aztec Empire
Population Decline Epidemic Elite Downward Mobility Uprising Civil War Capital Loss External Conquest
1325 CE 1361 CE (Chagatai Khanate)
Fragmentation of Chagatai Khanate
Uprising Fragmentation External Conquest Ruler Assassination Ruler Depose
74 BCE 63 BCE (Hellenistic Crete)
Mithridatic Wars
External Conquest
1171 CE 1206 CE (Early Mongols)
Crisis in Mongolian Confederacy
Civil War Ruler Assassination

and 161 more ... coded for 153 Polities

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

Nov. 1, 1854 Riot (political) in New York (NY), New York City: 1 was killed.   Hartford Daily Courant Or The Hartford Courant

July 1, 1857 Lynching (extralegal) in Iowa (IA), Cedar: 2 were killed.   Paul A. Gilje, Riots In The United States

Dec. 1, 2010 Terrorism (political) in Florida (FL), Panama City: 1 was killed.   The New York Times

July 1, 1862 Riot (race) in Ohio (OH), Toledo: 1 was killed.   Paul A. Gilje, Riots In The United States

Dec. 1, 1888 Riot (race) in Mississippi (MS), Wahalak: 8 were killed.   The New York Times

Aug. 1, 1983 Riot (prison) in Oklahoma (OK), Hominy: 1 was killed.   The New York Times

Sept. 1, 1885 Riot (ethnic) in Wyoming (WY), Rock Springs: 51 were killed.   Paul A. Gilje, Riots In The United States

Jan. 1, 1871 Lynching (race) in South Carolina (SC), Clarendon, Sumter: None were killed.   Paul A. Gilje, Riots In The United States

and 1941 more ...