What would the modern day equivalent of the monarch, lords, knights, and peasants, be and what are some similarities and differences? answer clearly.

The monarch would be out president today.
S:They both have the power to do lots of good or bad and are of the highest position in this political hierarchy.
D: the president does not have the absolute control like a monarch would. The president shares power with 2 other branches of government while the monarch has advisors but he is the absolute power.

The lords would be like our senators I believe.

S: they would be the people who micromanage for the ruler. The run a section of the land for the ruler.
D: senators are to be picked by the people not appointed by the ruler.

Knights I would just relate to the military.

S: fight for the country
D: the military chooses who becomes a soldier, a separate process in which the ruler doesn't oversee. Knights are knighted by the ruler.

Peasants are the everyday people.

S: we work and conduct our daily life the same ways.

D: I would say we aren't as poor and mistreated. We have more options now then before and everyone has more of an equal chance to change their fortune

I hope this helped a little bit at least

If i remember correctly it was caused by people hurling bodies at a country for some reason and them they all became infected