I think its mathematics,i could be wrong but i would mathematics
The beliefs or principles of a group of English Protestants of the late 16th and 17th centuries who regarded the Reformation of the Church under Elizabeth I as incomplete and sought to simplify and regulate forms of worship.
Or
censorious moral beliefs, especially about self-indulgence and sex.
<span>The Black Death was one of the most devastating pandemics in human history, resulting in the deaths of an estimated 75 to 200 million people in Eurasia and peaking in Europe from 1346 to 1353.</span>
It would be more helpful to have a map, but based on the information I would say 1810. The text itself states that is when it was most populated.