Stone circles in West Penwith, Cornwall consistently contain 19 stones, matching both the 18.6-year lunar standstill cycle and the 19-year Metonic cycle. At Merry Maidens, a processional route connects two circles, multiple standing stones, ending at Bora farm — Cornish for 'place of the witch.' Ancient peoples were clearly in tune with lunar movements!
Cornish stone circles contain 19 stones reflecting 18.6-year lunar cycle

Site mentioned
📍 Merry Maidens Stone Circle
Key facts
- Stone circles in West Penwith all have 19 stones
- 19 represents the nearest whole number to the 18.6-year lunar standstill cycle
- 19 also represents the Metonic cycle where Sun and Moon return to same position in sky after 19 years
- Merry Maidens, stone circle has 19 stones connected by processional way to Goon Rith standing stone
- The processional route includes two stone circles, two standing stones, and ends at Bora farm (Cornish for 'place of the witch')
- Mên-an-Tol was originally part of a stone circle with 19 stones discovered during excavation
- Boscawen stone circle also has 19 stones with a central quartz stone known for healing
Sources
megalithomania.co.uk
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