Data sources

CivicDiff is built entirely from public data. Each dataset is refreshed by an automated pipeline, and every item links back to its primary source wherever possible.

DatasetSourceRecordsCoverageUpdated
Amendments & statehoodNational Archives (curated)771787–19922026-10-15
Armed conflicts & war powersUCDP/PRIO Armed Conflict Dataset (Uppsala University); declarations of war and AUMFs curated from the Senate Historical Office and Congress.gov1101946–20252026-10-15
Article III judgesFederal Judicial Center, Biographical Directory of Article III Federal Judges5,7751789–20262026-10-15
Budget & debtOMB Historical Tables; Treasury Fiscal Data (Debt to the Penny, Historical Debt Outstanding)14,1001790–20312026-10-15
Cabinet & senior officialsWikidata "position held" statements (CC0)1,0861775–20262026-10-15
Executive ordersFederalRegister.gov API, including revocation notes1,5491993–20262026-10-15
Federal agenciesWikidata inception and dissolution dates (CC0)1,3591772–20262026-10-15
Members of Congress@unitedstates congress-legislators (public domain), based on the Biographical Directory of the U.S. Congress45,5651789–20262026-10-15
Monthly federal spending & revenueTreasury Monthly Treasury Statement, Table 14652013–20262026-10-15
Presidents & vice presidents@unitedstates congress-legislators executive.json1311789–20262026-10-15
Public lawsWikipedia "List of acts of the Nth United States Congress" (CC BY-SA), linked to Congress.gov13,6731789–20262026-10-15
Rulemaking activityFederalRegister.gov API document facets1,9701994–20262026-10-15
Senate nominationsCongress.gov API (Library of Congress), civilian nominations23,0491981–20262026-10-15
Supreme Court decisionsThe Supreme Court Database (Spaeth et al.)27,7371791–20262026-10-15