History Timelines is a free, sourced reference covering people, events, places, and American history. Every timeline traces its facts to a named source and shows the date it was last reviewed, so it can be cited with confidence in classrooms and research alike.
Why We Built This
A single, sourced timeline of world history is harder to find than it should be. Search for almost any historical figure, event, or place, and the results split between encyclopedia entries too dense to scan quickly and summary sites too thin to trust. History Timelines exists to close that gap: a horizontal, clickable timeline strip at the top of every page for a fast check, followed by full narrative context underneath for anyone who wants to actually understand what happened and why. Fast to check, deep enough to learn from: that's the standard every page on this site is held to.
What the Archive Covers
The site is organized into four sections so a reader always knows where a timeline lives. People covers the lives that shaped their century, from world leaders and every U.S. president to civil rights figures, scientists, and cultural icons. Events covers the wars, revolutions, and turning points that redrew the map. Places covers ancient civilizations and countries from founding to today. American covers every U.S. state from territorial or colonial origins through statehood and into the present. Each new addition is written to the same standard as the last, so browsing across sections never feels like switching sites.
How Each Timeline Gets Built
Every page starts from the same structure: a dated sequence of milestone events, followed by narrative sections that explain how those events connect. Names, dates, and figures are checked against at least one named, publicly available source before publication: encyclopedic references, official archives, and established biographical or historical records. Where historians genuinely disagree about a date, a cause, or a motive, the text says so rather than presenting one account as settled fact. The full detail of our sourcing standard, including what counts as a source here and what we deliberately avoid, lives on our How We Source page.
Free to Use, Free to Cite
History Timelines is free for teachers, students, and general readers, with no account required to read or cite any timeline. Every page includes a ready citation block in APA, MLA, and Chicago formats, built specifically for classroom and research use: click "Cite this page" on any timeline to copy one. There's no paywall, no login, and no restriction on citing this site the way you'd cite any other reference work.
A Living Archive, Not a Fixed One
History doesn't change, but the record of it does. New scholarship, newly opened archives, and, for people and places still active in the news, ongoing events all mean a page can go out of date. Every timeline shows a last-updated date, and pages are revisited periodically rather than treated as permanently finished. New timelines are added on a regular schedule as the archive continues to grow. If you spot an error or have a question, the Contact page has a way to reach us, and confirmed corrections are made directly to the page.
Related Links
A few outside resources readers of this site have found useful: a History of English Language resource from a UK secondary school, Collectors Centre Online, and Bosworth's Garden Centre.