Open chronometric data for archaeology

Photo: Şahin Sezer Dinçer on Unsplash
Site 73,427

Sites

radiocarbon date 350,190

Radiocarbon dates

typological date 138,176

Typological dates

Coming soon!

Dendro dates

What is XRONOS?

XRONOS is an open data infrastructure for the backbone of the archaeological record – chronology. It provides open access to published radiocarbon dates and other chronometric data from any period, anywhere in the world.

Latest news

Improved data browser performance and new download options

Attentive and/or impatient users might have noticed that XRONOS’ data browser got significantly faster recently. With nearly half a million dates and over 70,000 site records, our backend processes had been struggling not just to display it on the data browser’s map, but to serve large result sets through the JSON API. This meant that API requests for large sets of dates (e.g. the globe, or sometimes just a whole country) would often fail, with knock-on effects on server stability for all users. Happily, thanks to a number of recent behind-the-scenes performance improvements by Martin Hinz, we have overcome these problems. The data browser is snappier and API requests for e.g. all radiocarbon dates from Switzerland are now functional again – and fast! Read more...

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