After all these years, as I re – watched and finished the series “Witch Hunter Robin”, I just realized what she means by “Three hundred and twenty years since the Coven sank in the dark”. It has appeared in the opening and episode previews. I never realized what it meant until Google told me. Production year of the series is 2002. I then deducted that one by 320, making it 1682. And Google did the rest. To my surprise, this came up: https://en.wikipedia.org/wiki/Bideford_witch_trial ...