The original meaning of “collier” was a charcoal maker, not a coal miner. The relevant part of steel making is discussed in this episode of Bret Devereaux’s blo

The original meaning of “collier” was a charcoal maker, not a coal miner. The relevant part of steel making is discussed in this episode of Bret Devereaux’s blog: https://acoup.blog/2020/09/25/collections-iron-how-did-they-make-it-part-ii-trees-for-blooms/ https://acoup.blog/2020/09/25/collections-iron-how-did-they-...