30th
This large stone is at the entrance to Newgrange. There is some indication that the stone may have been used to block the entranceway originally and being removed for ceremonies requiring access to the passages and chambers inside the cairn. May of the decorated stones at the mounds were set into the walls yet have carvings where no human could ever see them. No one knows why but there is inevitable speculation about them being visible to a spiritual underworld. Although this seems quite possible, it is impossible to decypher any meanings or beliefs from the small evidence available.