Timelines

From Christian calendars and the medieval evidence for seasonal folklore to today’s costumes, candy, films, charity collections and public festivals: a history of Halloween as a changing, shared celebration.

Explore the story. Illustrated era bands and chapter headings organize the chronology. Hover over small clusters to fan out their entries; open a moment for its notes, sources and image credit. Tags follow religion, folklore, migration, commerce, entertainment, community, research and safety. Selected relationship arcs connect influences, related evidence and later reinterpretations; they do not prove an uninterrupted chain of descent or a causal relationship.

What the dates mean. The timeline begins with a conventional 609 CE milestone in Christian collective remembrance. Samhain’s likely older roots are discussed through the medieval texts that survive, without inventing a precise prehistoric founding date. Dates for folklore often mark a publication, collected testimony or the approximate period of a practice, rather than its invention. Year-only dates use 1 January as a placement marker. Early dates are year-level coordinates on a proleptic Gregorian axis; no Julian-to-Gregorian day conversion is implied. Modern daily coordinates use midnight UTC as a date marker, not an event start time.

A layered history. Christian Allhallowtide, Gaelic and other regional seasonal customs, later literature, migration and modern commercial culture contribute different strands. Scholars disagree about some connections. Folktales are identified as stories; later images and recollections are not presented as eyewitness evidence for ancient rites. Modern Pagan Samhain is treated as a living religious observance with its own modern development. Día de Muertos is explained as a distinct tradition, not simply renamed Halloween. Salem’s persecutions are also distinguished from modern witch imagery and festival tourism.

Coverage and cutoff. Coverage emphasizes Ireland, Scotland, Britain and North America, then follows selected international adaptations. It is selective rather than an exhaustive list of films or every country’s celebrations. Research was checked through 28 October 2026. The 2026 US spending number is a survey forecast, and forthcoming festival outcomes are not reported as completed history.

Sources and images. Entries link original texts, museum objects, archives, scholarship and organizational records, alongside relevant reference articles. All summaries are newly written. Images are linked from Wikimedia Commons, with a verified public-domain or Creative Commons reuse designation and an individual author/file-page/license credit. Some are later portraits, reproductions or contextual illustrations; their creation dates are available on their file pages. Attribution and share-alike requirements still apply to the relevant media.

Image: Jack-o'-Lantern 2003-10-31.jpg — Toby Ord; CC BY-SA 2.5. Wikimedia Commons. A historical illustration or later photograph may postdate the entry; see its file page.

Prepared by an AI assistant using the OpenChronology API. Not yet reviewed by the account owner.