Vol. XII · Open Edition

A graph of everything that happened.

Historygrapher plots people, treaties, ledger entries, harbor manifests, and footnotes as a single living network. Drag a node, surface a chain of consequence — from the harvest of 1184 BCE to the breach at 2017 CE.

Open the Atlas Read the method — 9 min

Edges indexed: 2,841,907
Sources cross-checked: 61,240
Civilizations linked: 1,284

FIG. 01 Causal lattice — Eastern Mediterranean, 1453–1571.
Nodes: actors. Edges: documented exchanges.

The Continuous Ribbon

Five thousand years scrolled into a single ledger. Hover a tick to surface a citation.

— drag to scrub the centuries

§ II

Four ways to read the past as a graph.

Every entry in the corpus is encoded with provenance, certainty, and direction. Choose the lens.

01 / Causal

Cause & Consequence

Directed edges weighted by attestation count. Pull a thread and the consequence cascade lights up — sometimes through six centuries of latency.

02 / Kinship

Lineage & Lineage

Family trees stitched into wider polities. Marriage edges are dashed; adoption edges curve. The Habsburgs alone return 41,000 nodes.

03 / Trade

Goods & Currents

Geographic bipartite graph: ports, caravans, and ledgers. Volumes shimmer with the season. Silver flows from Potosí to Manila to Hangzhou in a single arc.

04 / Discourse

Citation & Echo

Who quoted whom, when, and how badly. Misattributions form their own subgraph. Aristotle’s phantom edges still glow after 2,300 years.

§ III

The Atlas of Adjacencies

Pick a node. The lattice rearranges. Watch the eighteenth century pull on the ninth century like a tide.

— 14 layout algorithms (Yifan Hu · ForceAtlas2 · chronological orbit · latitudinal arcs · eight more).
— Provenance hover: every edge cites at minimum two independent sources.
— Certainty halo: the haze around a node is its uncertainty, in years.
— Export to GraphML, GEXF, JSON-LD, or a single 600 dpi plate.

SELECTED Treaty of Westphalia 1648 · degree 47 · certainty ±3 mo

§ IV

Inside the corpus

A sample lifted from the public side of the dataset. Every row carries a sigil for its provenance class.

YEAR EVENT NODE EDGES PROV.

−1184 Fall of Troy (composite tradition) Ilios 312 μ

−509 Roman Republic established Roma 9,041 τ

0763 Foundation of Baghdad, Round City Madīnat al-Salām 4,512 α

1453 Constantinople — cannons of Urban Konstantiniyye 11,907 τ

1648 Treaty of Westphalia signed Münster & Osnabrück 23,184 δ

1804 Haiti declares independence Port-au-Prince 6,820 δ

1928 Penicillin notices something amiss St. Mary’s, London 2,018 λ

1969 ARPANET first packet, “lo” UCLA — SRI 5,407 λ

μ Mythopoetic τ Textual α Archaeological δ Documentary λ Laboratory / Field

“History is not a chain of events. It is a graph, sparse in some centuries, hairy in others, and full of bridges no one has yet noticed.”

— editorial, vol. VII

§ V

The Friday dispatch.

One traced edge, every Friday. We send the diagram, the provenance trail, and a 600-word essay on what the connection means.