Califat Coal Mine
United Kingdom
The Califat Coal Mine began in 1852, when William Worswick signed a lease with Wyggeston Hospital, Leicester. The Coleorton No 2 Colliery was then sunk. It was named after the town of Calafat, now in Romania, then in the Ottoman Empire, which was under siege by Russian forces. The site has been subject to various excavations and restorations since the 1960s.
Mine data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).