Feudalism
It is a type of dominant social system in Europe, in which the nobles held got lands from the crown in exchange for military services. It was a system of duties and land ownerships. With feudalism being applied, all the land in the kingdom belonged rightfully to the king. Besides, the king would choose to give some of his areas to the nobles and lords who went against him. The gifts are also known as fiefs.
Scholasticism
It was a philosophy school that ensured philosophical analysis that came before the Latin catholic paradigm and took over teaching in the universities. Saint Ambrose and St Augustine started it. Scholasticism insists on the use of persuasion. The critical importance of dialectic is to get answers to questions or to prove that contradictions can be resolved. The scholasticism systems that worked against fixed religions aimed to solve philosophical problems.
Crusades
There was a stream of religious wars between Muslims and Christians who started it with the aim of having control of holy sites, which were deemed sacred by both sides. After years of Muslim wars of expansion, the crusades were set up and organized by Christians from western Europe. The main aim of the crusades was to end the extension of Muslim states to reclaim Christianity.
Hundred years war
It was a string of conflicts between France and England about taking over the French throne, which lasted for 116 years and saw many battles. The war happened between the rulers of England, the French house of Valois, and the house of Plantagenet. the leading cause of the war was the dissatisfaction of Edward III of England, with the failure to fulfill his pledges of restoring Guinea’s part taken by Charles IV