There's an interesting post about the langiuage of Old English on the English based National Archives website, concerning their oldest item containing the language, a charter from 974 AD for the Anglo-Saxon king Edward. Now the history of Edgar has nothing to do with Scotland, but it is interesting to see vestiges of Old English which later evolved into the English language that we use today in Britain, including Scotland, albeit our dialects here have been heavily influenced by Scots and Gaelic through the centuries!
Most of the document is actually in Latin, but a tiny part detailing lands in question are written in Old English. You can read the article at https://www.nationalarchives.gov.uk/explore-the-collection/stories/edgar-charter/ and see the document itself at https://www.nationalarchives.gov.uk/about/visit-us/whats-on/exhibitions/stories-unboxed/.
Incidentally, there is a Teach Yourself Old English (Anglo-Saxon) course available, as written by Mark Atherton - you can see further details via Amazon at https://www.amazon.co.uk/Yourself-Complete-Anglo-Saxon-Aug-27-2010-Paperback/dp/B00C47KOOO/.
Chris
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