Ink used in Herculaneum scrolls contained led

New analysis of Herculaneum papyrus scroll fragments revealed the use of metallic ink in Greco-Roman literary inscription centuries earlier than previously thought.
New analysis of Herculaneum papyrus scroll fragments revealed the use of metallic ink in Greco-Roman literary inscription centuries earlier than previously thought.
The 15th century city of Nieszawa, known by two names Nowa Nieszawa (New Nieszawa) or Dybów was a prosperous urban centre on the border of the Polish Kingdom and the Teutonic Order. In nearly 40 years of its existence the city became the main rival of the Order’s city of Toruń (Thorn), a member of the Hanseatic League.