The most comprehensive open-source collection of long-run financial and economic data. 27 sources, 1,100+ files, ~240 countries, 1 CE-2026. Exchange rates, gold, silver, interest rates, commodity prices, GDP, sovereign debt, and more.
R package to simplify analysis of accounting in non-decimal currencies and double-entry bookkeeping
LLMs for Historical Dataset Construction from Archival Image Scans
Open macro-cycle observatory for current regimes, long-wave history, official macro release ledgers, watchlists, and evidence-gated readings.
Source code to replicate the results of our article published in Revista de Historia Económica: Another case of the middle-income trap: Chile, 1900-1939
三千年账本 · Ledger of Empires — 用一张资产负债表重读中国金融史：8 个财政-货币内核、24 张决策卡、Python/Excel 情景模拟。Every empire keeps books. Every empire goes bankrupt.
Eight historical cycle theories overlaid on one shared time axis (1600-2050), each paired with real long-run data. A comparison tool - not prophecy.
A historically-calibrated banking CEO simulation (1945-2040): C++20 statistical engine, Crow REST/WebSocket API, and a Svelte browser client.
Replication package: The Reign of the Saints — Medieval Aristocratic Networks and the Origins of Western Law (Truitt)
Primary-source monetary data, transcribed from page images rather than OCR. The Continental dollar (1777-1781) and the greenbacks (1859-1866).
A cross-axis study of US market crashes, political power, and economic stress, 1865–2026 — four falsifiable findings tested against the historical record
Economic-history research on the 1891–1892 famine and migration under the Stolypin reforms.
A transparent “golden source” tracing the economic architecture of enslavement.
Research software for extracting candidate employer locations and offered wages from historical newspaper OCR, with synthetic tests and an audit record.
🚂 Network analysis of corporate directors in Victorian Britain, 1880-1900
Did American silver cause Europe's Price Revolution? Across 20 regions from 1450 to 1650 it Granger-causes grain prices in none of them, and the implied transmission speeds vary seventeenfold.
Deterministic long-run development simulator spanning population, technology, education, demographic transition, and regional divergence.
Did American silver make, and then break, Ming China? Potosí treasury accounts, Chinese rice prices in silver and late Ming disasters.
Text-based innovation and knowledge-spillover indices (Koschnick 2025, arXiv:2512.16587)
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