I've seen it used somewhat often in the UK (almost entirely in academia as far as I can recall), at least frequently enough that I've used it in my own writings

I've seen it used somewhat often in the UK (almost entirely in academia as far as I can recall), at least frequently enough that I've used it in my own writings despite not studying history. At a quick search, I can find a couple of sources that suggest it for notetaking at least: * University of Portsmouth (listed under "Common general abbreviations") https://www.port.ac.uk/student-life/help-and-advice/study-skills/research-reading-referencing-and-citation/helpful-abbreviations-for-speedy-note-taking https://www.port.ac.uk/student-life/help-and-advice/study-sk... * University of South Australia (under "Common symbols and abbreviations") https://lo.unisa.edu.au/pluginfile.php/1687781/mod_resource/content/0/Abbreviations%20for%20note%20taking_Sept_2017.pdf https://lo.unisa.edu.au/pluginfile.php/1687781/mod_resource/...