Saturday, 18 January 2025
Unearthing Britain's Darkest Chapter: The Early Bronze Age Massacre at Charterhouse Warren
Friday, 17 January 2025
How did prehistoric people respond to natural disasters? - Rune Iversen et al
Click to visit thread on X, the artist formerly known as Twitter.NEW How did prehistoric people respond to natural disasters? New research suggests a volcanic eruption that blocked out the sun caused people in Neolithic Denmark to ritually sacrifice 'sun stones' to ensure a good harvest.
— 🅰ntiquity Journal (@AntiquityJ) January 16, 2025
Strap in for a volcanic #AntiquityThread 1/14 🧵 pic.twitter.com/fZ7V0FxwAr
For the whole thread, off X, see https://threadreaderapp.com/thread/1879827188263887239.html
For the paper discussed see; Iversen, R. et al. (2025) ‘Sun stones and the darkened sun: Neolithic miniature art from the island of Bornholm, Denmark’, Antiquity, pp. 1–17. doi:10.15184/aqy.2024.217.
I think the paper is excellent, climate chaos causing resources being wasted in pointless attempts to assuage the weather gods seems all too likely. At other times and places in prehistory rapid changes in the climate are probably linked to activities such as monument building.
There are the obvious quibbles with the premise which the authors address such as why just on one small island and where was this unrecorded volcanic eruption.
My first reaction is that the disc illustrated looks more like an annual calendar or similar, than a sun disc, with periods being marked out with radial lines and then maybe individual days or events marked out with cross lines. But that is just my opinion based on minutes of superficial study.
Sunday, 12 January 2025
Norfolk Sarsens
Thursday, 9 January 2025
'How did ancient people move large stones?' - Dr Hugh Thomas
Archaeologists are constantly asked is 'How did ancient people move large stones?'. The thought of people moving 2/20/200 tonne stones thousands of years ago just seems impossible. But what if I told you we have a lot of photos/video of people moving huge stones today? 🧵1/ pic.twitter.com/tjNg1LHxEw
— Dr Hugh Thomas (@hughs_news) January 8, 2025
Click to visit thread on X, née Twitter.
For the whole thread, off X, see https://threadreaderapp.com/thread/1876792234625957994.html
Wednesday, 8 January 2025
The Tectonic Movement of Stonehenge
The new research claims "Geomagnetic analysis shows that since the entire region has rotated over time, the Rujm el-Hiri’s location shifted from its original position for tens of meters for the thousands of years of the object’s existence, challenging theories of the alignment of its walls with astronomical bodies and raising questions regarding its possible identification as an observatory."
Stonehenge doesn't have the same problem.
The Eurasian plate has been rotating clockwise primarily in a north-easterly direction over the past several thousand years at a rate of approximately 25 millimeters per year. Given this rate of movement, over the last 5,000 years the Eurasian plate has moved approximately 125 meters northward .This shift represents about one-thousandth of a degree of latitude, which is insignificant.
Tuesday, 31 December 2024
Ritual Stones in Scottish Universities
The tradition of "black stone examination" in Scottish universities is a fascinating aspect of academic history, with roots dating back to at least the 16th century. Here's a summary of the references and information about this practice (produced by Perplexity AI agent):
## Origins and Prevalence
The black stone examination was once a common practice among the five ancient Scottish universities. The earliest known reference to this tradition dates back to 1531 at the University of St Andrews[1]. By 1647, the University Commissioners referred to the examination on the "Black-staine" as a practice common to all Scottish universities[1].
## Specific University References
### University of St Andrews
- An "examen quod appellant nigri lapidis" (examination which they call of the black stone) is mentioned in a 1580 regulation[1].
- The reputed black stone of St Andrews University, now in Parliament Hall, appears to be the base of a column[1].
### University of Glasgow
- In 1659, a regulation mentioned that library fees should be paid before a graduand could proceed to "laureation" (graduation) on the black stone[1].
- The University of Glasgow's Blackstone Chair, created in the mid-1770s, incorporated this tradition into a more elaborate piece of furniture[1].
### University of Edinburgh and Marischal College, Aberdeen
- Both institutions once held black stone examinations, although no trace of the stones used survives[1].
### King's College, Aberdeen
- According to one account, the black marble tombstone of the founder, Bishop Elphinstone, was used at graduation[1].
## Nature of the Examination
The black stone examination was typically an oral examination conducted in Latin or Greek. At the University of Glasgow, for example:
- Students sat on the black stone (later, in the Blackstone Chair) while professors tested their knowledge of chosen books[1].
- An hourglass was used to time the examination[1].
- The examination was part of the process for "promotion" to the next stage in the degree structure[1].
## Evolution and Discontinuation
The practice of black stone examination evolved over time:
- At Glasgow, the tradition was incorporated into the elaborate Blackstone Chair in the 1770s[1].
- The Universities Act of 1858 led to the introduction of written examinations, largely ending the practice of oral examinations on the black stone[1].
## Significance
The black stone examination was more than just an academic test; it was a ritual element that added solemnity and tradition to the examination process. Its widespread use across Scottish universities highlights a shared academic culture and tradition unique to Scotland's educational institutions.
Citations:
[2] https://en.wikipedia.org/wiki/Black_stane
[3] https://www.atlasobscura.com/places/blackstone-chair-glasgow-scotland
[4] https://museumoftheuniversityofstandrews.wordpress.com/2018/05/09/st-andrews-and-the-blackstone/
[5] https://www.bbc.co.uk/ahistoryoftheworld/objects/1zz8mu7wSai1ARME0WuMSw
[6] https://collections.st-andrews.ac.uk/collection/furniture/1004089
[7] https://collections.st-andrews.ac.uk/item/black-stone/1000995
[8] https://citydays.com/places/blackstone-chair/
[9] https://electricscotland.com/education/edu18.htm
[10] https://special-collections.wp.st-andrews.ac.uk/2017/12/11/the-exam-season-is-upon-us/
Monday, 30 December 2024
Darwin's Stonehenge Notes
I have written before about Darwin's Stone at Stonehenge - https://www.sarsen.org/2014/05/darwin-stonehenge-and-worms.html where he is investigating the actions of worms in burying stones.


