A truly sensational find is presented in volume 23 of Medieval Worlds: a newly discovered Christian world chronicle in Arabic. Adrian C. Pirtea offers a case study of the recorded events of the years 633-634 CE in a preliminary examination of this exciting new source.

A rare source on papermaking in 13^th-century Baghdad was transcribed and partially translated for a further addition to our volume on Mongols’ Baghdad. Knowledge Transmission through Manuscript Cultures before and after the Conquest (guest editors: Bruno de Nicola and Nadine Löhr). Our cluster on Moving Jobs: Occupational Identity and Motility in the MiddleAges (guest editors: Annamaria Pazienza and Irene Bavuso) is continued from volume 20 (2024) with three contributions investigating how mobility could have meaningful impact on social advancement and identity formation. Two captivating articles on Urban Administrative Spaces (guest editor: Katalin Szende) investigate chancery documents of the 14^th-17^th centuries. They open a new series on Multilingualism in Premodern Societies, which investigates patterns of communication, mobility and power in connection with language use in a Eurasian context.