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xronos.ch

Open database of radiocarbon and other chronometric dates from archaeological sites worldwide, with an API for researchers

Switzerlandxronos.chWebsite technologies

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Highlights

  • New on EvolcAdded 2026-11-01

About xronos.ch

XRONOS is an open repository and curation platform for chronometric data from archaeological contexts. It compiles radiocarbon, dendrochronological and other chronological information, and offers access through a web frontend, a JSON API and an R package. The platform includes single and summed radiocarbon calibration, and it tracks the version history of each record.

Its users are researchers who work with archaeological chronologies. The data is published as open access, and individual contributors keep control over the licensing of their data. The core team reports 70,660 sites, 314,832 radiocarbon dates and 50,062 typological dates in the database. The project released version 1.3.0 in October 2026, which added automatic detection and merging of duplicate records.

The frontend is a Ruby on Rails application, and its source code is published on GitHub. Recent data additions include radiocarbon data for the Canary Islands from the 14Canarias database, with 207 sites and 802 dates.

Product: Web database, JSON API and R package for querying and downloading chronometric data from archaeological sites.

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  • Ruby on RailsMedium confidence
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