It was not till 1168 that the gigantic four-headed image of Swantevit was destroyed at Arcona, the capital of the island of Riigen, and this Mona of Slavonic superstition was included in the advancing circle of Christian 5 Church, Gifts of Civilization, p. 330.6 Bede, H.E.
The courage of the Romans, however, soon overcame such fears; the Britons were put to flight; and the groves of Mona, the scene of many a sacrifice and bloody rite, were cut down.
At this period the copper mines of Mona or Anglesea, the silver mines near Plinlimmon and the gold mines in the valley of the Cothi in Carmarthenshire were exploited and worked with some success by the conquerors.
That Mona isnât in the office all the time reinforces that mutual dependency.
Open pit mining finished during the early 1800's and was replaced by small-scale underground mining at the Mona Mine in 1811.
