Declaration of Climate Emergency

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I am declaring a state of climatic emergency across all of my blogs and as such until further notice all blogging efforts will be via Evolved.  I hope you will continue to visit and follow my efforts.

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Lecture Note 1 - History of the World - 1500CE Further Reading

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Course: History of the World to 1500CE Columbia University YouTube Lectures - Richard Bulliet (RB) Lecture 1 - Further reading 1.2 Introduction to World History - Youtube upload 2010 Below are my notes on points for further reading from lecture 1 prior to studying lecture 2. Sources:  Hyper Physics ,  C14 dating ,  Radiocarbon FR 1.2 - Carbon dating and corrected carbon dating. Additional sources:  BBC Bitesize Well this is going to test the old grey matter! Ok so Carbon dating is a form of radioactive dating. It can only be applied to matter that was once living and presumed to be in equilibrium with our atmosphere; matter that assimilates carbon dioxide such as plants and animals.  The nitrogen in our atmo sphere is bombarded with neutrons that produce a radioactive isotope called carbon - 14. This in turn combines with oxygen to form carbon dioxide which is assimilated by plants and animals through photosynthesis and I assume by animals thr...
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The Battle of Crogen

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This week we visited a local battle site relating to Henry II's campaign in Wales in the 12th century.  The spot marks the location of The Battle of Crogen. I recorded as much as I could in photos to tell the tale as per the interpretation boards which had such great information however the main purpose of our visit was to see the oak tree that marks the location that the Welsh buried the English dead after a crushing defeat.  The oak would certainly have been present at the time, forming part of what was the Ceriog Forest, and is a truly amazing specimen. (Click on individual images to enlarge.)
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Holt Castle

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Last night we went to Holt Castle to listen to a talk given by Steve Grenter, Wrexham Heritage Service Manager, on the history and archaeology of Holt Castle. The castle is situated on the banks of the River Dee, on the Welsh side of the border. The castle was built between 1282 and 1311 by John de Warren, an Earl of Surrey, and the castle appears almost unique in Britain for its unusual pentagonal design.  Online records relating to John de Warren's life and death are conflicting and at this time I am unsure whether he was the 6th, 7th or 8th Earl of Surrey (various online resources differ on this particular point) and as such will refer to my books in due course. What is clear is that a John de Warren was very significant in the life of Edward I and was awarded lands in North Wales along with other Marcher Lords. Holt Castle was constructed as a headquarters for the Earl in Wales. The remains of the castle are limited to the remnant central courtyard area whic...
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