No, not really because the black death occurred only for some period of time. Not throughout the whole middle ages.
inside the national party.
The most influential members of a party would be at the national level which is basically the top organ of a party. Party officials at the most level, which is the national party are able to influence policy and make the major decisions
Federalist No. 51, titled: The Structure of the Government Must Furnish the Proper Checks and Balances Between the Different Departments, is an essay by James Madison, the fifty-first of The Federalist Papers
Organizing history by theme illustrate continuity by knowing that it shows how past events influence subsequent events (B).