Medieval rap up

This term we ended our medieval times topic.
We have studied the progress and effects of the plague, known as the black death.
Also we have learned the roles of every person in the society back then.

Another thing we have learned is that merchants would have to go to different countries and risk a lot to get stuff for there own land.
That the medeival times ended when inventions were created and castles were becoming useless.
I have personally found out the structure of medieval buildings and towns.