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Lincoln green is the colour of dyed woollen cloth formerly originating in Lincoln, England, a major cloth town during the high Middle Ages. The dyers of Lincoln, known for colouring wool with woad to give it a strong blue shade, created the eponymous Lincoln green by overdyeing this blue wool with yellow weld or dyers' broom. Other colours like "Coventry blue" and "Kendal green" were linked to the... Wikipedia