The Natural World
I have started to collect information from the Georgian period (or thereabouts) on natural phenomena. Although Acts of God rather than Acts of Mankind, natural phenomena affect humans
Tables mapping the days of the month and the days of the week against the phases of the moon. For example, in May 1703 there was a full moon on Wednesday 19th of that month.
Weather reports both official and anecdotal, collated into tabular form.
Earthquake events felt in Britain.