Yes, it's crackers. There's nowt as strange as folk. Some time, a few hundred years ago, the calendar was reset and it's this that's responsible for the difference between, say, Winter Solstice and Christmas Day. What's worse is that nobody realises it - it took me ages to figure it.

This is controversial but, in Bolton, at Barrow Bridge, there's a fairly well preserved stone row that has a wide view of the eastern horizon before it. There's a very prominent hill on the horizon, actually on Scout Moor in Rochdale, and the Mayday sunrise should rise from behind this Knowl Hill. It's one for your calendar. The stone row is called Thurstones. There's another one half a mile to the northwest, at a place called Burnt Edge, that does a similar trick with the summer solstice sunrise. And another a mile to the west that indicates the winter solstice sunset - that one's on Winter Hill! The archaeologists have yet to get to any of them, however ...