There is a great article on Newgrange at http://wattsupwiththat.com/2015/12/21/a-little-known-ancient-historical-building-that-marks-the-winter-solstice/
-- -- Richard Mallett Eaton Bray, Dunstable South Beds. UK --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
