 At the instigation of Colbert, the guild of drapers was founded on 16 April 1668, the manufacture of cloth produced two thousand pieces per year.Two years earlier, Colbert had also promoted the introduction of the glass factory in the forest of Tourlaville.In the 18th century, the economic resources came mainly through maritime trade, the preparation of cured meats and the harbour and breakwater works, plus a moribund textile industry.