Eboracum workshops growing up outside the fortress to supply the needs of the 5,000 troops garrisoned there. Production included military pottery until the mid-3rd century, military tile kilns have been found in the Aldwark-Peasholme Green area, glassworking at Coppergate, metalworks and leatherworks producing military equipment in Tanner Row. In the Roman period, Eboracum was the major manufacturing centre for Whitby Jet. Known as "gagates" in Latin, it was used from the early 3rd century as material for jewelry and was exported from here throughout Britain and into Europe. Examples found in York take the form of rings, bracelets, necklaces, and pendants
Late Latin Late Latin Late Latin () is the scholarly name for the written Latin of late antiquity. English dictionary definitions of Late Latin date this period from the 3rd to the 6th centuries AD, and continuing into the 7th century in the Iberian Peninsula. This somewhat ambiguously defined version of Latin was used between the eras of Classical Latin and Medieval Latin. There is no scholarly consensus about exactly when Classical Latin should end or Medieval Latin should begin. However, Late Latin is characterized (with variations and disputes) by an identifiable style. Being a written language, Late Latin is not the