DyAs project (Starting date: 21/12/2022; funded by the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 945298-ParisRegionFP. Host Organisation: CNRS) studies how astronomical diagrams operate as vehicles for the delivery of scientific arguments in Byzantine manuscripts copied between the 9th and the 15th centuries. It focuses on diagrams involving and transmitting knowledge about the two luminaries, the sun and the moon. 

DyAs aims at understanding the cognitive functions and graphic conventions of Byzantine astronomical diagrams and their employment of light/shadow and colours/lines in order to structure knowledge. DyAs positions the Byzantine evidence in a comparative Afro-Eurasian context and demonstrates its importance within the network of interrelated cultures of the wider medieval world.

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