Hyperboreans and Stonehenge

This article is not about Hyperborenas or about Stonehenge. Long writings on these topics are irrelevant for this article. I have therefore reverted the additions talking about Stonehenge and Hyperboreans. OpenFuture (talk) 
I agree that most of this edit reads like speculation and original research or synthesis. However the reference looks reasonable (I haven't consulted it directly but have looked at the series of papers from this and other conferences) and I have no reason to think there's anything unreliable about it. I've reinserted what I think could reasonably be attributed to the conference paper. Kim Dent-Brown (Talk) 
This article is a shambles and needs a full re-writing — Preceding unsigned comment added by Stavgard (talk • contribs)  Stavgard (talk) 
This comes from the article in Fornvännen 1983 [1]
This article was edited and approved by the previous editor of Fornvännen Fil Dr Jan-Peder Lamm Fornvännen is a highly reputable magazine Stavgard (talk) 
Jan-Peder Lamm, born 27 October 1935, is a Swedish archaeologist. He received his PhD in 1973 from the University of Stockholm for a dissertation about a Migration Period elite cemetery near Drottningholm.
Lamm taught archaeology at the University of Stockholm in the 1970s and then worked until retirement as Head Curator for the Swedish Iron Age at the Museum of National Antiquities in Stockholm. He is a member of the editorial board behind the journal Fornvännen and has taken active part in the Helgö project since the 1960s. Stavgard (talk) 
I fully agree. It does not belong under the heading Grooves. It belongs under the heading Astronomical calendars on Gotland. However the heading Grooves needs a full rewrite
Stavgard (talk)