Knowth - the largest of the three main Boyne passage tombs with 17 satellite tombs - holds an extraordinary concentration of megalithic art! Martin Brennan identified a 'calendar stone' with 22 crescents + 7 circles = 29 (lunar synodic period). 🌙🌀 Research showed it tracks moon phases at equinoxes.
Key facts claimed:
- Knowth is the largest of the three main Boyne passage tombs with 17 satellite tombs
- Contains approximately one-third of all known megalithic art in Western Europe in one location
- Martin Brennan identified the 'calendar stone' with 22 crescents and 7 circles (22+7=29, the lunar synodic period)
- Three crescents covered by spiral symbol may represent the three days of new moon invisibility
- Charles Scribbler demonstrated Knowth's passages track moon phases at equinoxes for predicting future lunar phases