A person who writes or records annals; a historian who records events year by year.
From annuals (plural of annual, from Latin annualis 'yearly') + -ist (suffix meaning 'one who practices or specializes in'). Literally, 'one who writes annals or yearly records.'
Annualists were crucial record-keepers in medieval monasteries, writing down major events each year in chronicle form—without them, we'd know almost nothing about European history between the 5th and 10th centuries!
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