I am uploading
to the Ancient Ireland file.
NEWGRANGE ("new Grange")
is a fairly modern term for a famous artificially and erroneously reconstructed site
known in ancient days as
SI AN BHRU
which is a Gaelic phrase not properly understood
because people do not know what it really referred to.
As I have found [see e.g. Gaelic dictionary search], SI is simply a short form rendition over the years
for Galeic SIOR [actually sìor] which means "eternal, perpetual" in Gaelic.
BHRU means "log, beam, wooden causeway"
so that Newgrange represented the "perpetual or eternal post of heaven" which is the immovable North Ecliptic Pole and indeed, in my discovery of the geodetic astronomical system of Ireland, Newgrange in fact is at the position of the North Ecliptic Pole (around which the North Celestial Pole or Pole Star circles in its circle of precession of ca. 26000 years).
We also find support that this identification is correct through the fact that the County in which Newgrange is located is called MEATH and this is related to other Indo-European terms such as the Latvian term MIET- which menas "post". The Latvian Dainas are full of reference to this heavenly post which we probably retain down to modern days as our Maypole for May Day, a feast having original heavenly comparables [update 2006: see the heaven's maypole in the prehistoric rock art of Tanum - Gerum, Bohuslän, Sweden].
Gaelic Meath however means "become weak" so that the original correct root for MEATH in Gaelic is closer to MEIDH meaning "balance, i.e. the fulcrum of the balance of heaven" and we know this is correct since the ancient settlement in Meath was called TARA. TARA in German and TARE in English mean "weight" of packing. Hence, this was Heaven's balance, the balance fulcrum at the North Ecliptic Pole.