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
Portuguese name "Toledo" (a city in Spain), "Ávila" or "Dávila" (a city in Spain) and "Padilha". Other common "foreign" surnames are Bettencourt or Bittencourt (from Béthencourt, French), "Goulart, Goulard" or "Gullar" (French, original meaning is glutton), "Fontenele" or "Fontenelle" (French, from fountain), "Rubim" (from Robin, French), "Alencastro", "Lencastre" (from Lancaster, English), "Drummond" (Scottish), "Werneck, Vernek" or "Berneque" (southern German, the name of the Bavarian city Werneck), "Wanderley" (from "van der Ley", Flemish), "Dutra" (from "De Ultra", a Latin name meaning "from beyond" assumed by the Flemish family "Van Hurtere"), "Brum" (from "Bruyn", Flemish), Bulcão (from "Bulcamp", Flemish), "Dulmo" (from "van Olm", Flemish),