During the EAA meeting of 2018 Dirk Seidensticker, together with Florian Thiery, Allard Mees (both Römisch-Germanisches Zentralmuseum Mainz) and Clemens Schmid (Kiel University) presented their research on “RDF based modeling of relative and absolute chronological data: Examples from the central african rainforest and roman periodisation”. The method presented untangles hidden assumptions that are part of the way archaeologists build chronologies. Chronological intervals are sometimes based on absolute “certain” datings (e.g. C14) or derived from relative dating or combinations of both. Chronological relations between entities are modeled using Allen`s interval algebra within a RDF graph in order to produce a machine readable and processable semantic representation. The presentation can be accessed via Zenodo and the code is available via GitHub.