The primary way in which the Hundred Years’ War changed warfare in Europe is that it was the first "total" war, in the sense that all resources were mobilized to fight.
Answer:
In a pure democracy, laws are made directly by the voting majority leaving the rights of the minority largely unprotected. In a republic, laws are made by representatives chosen by the people and must comply with a constitution that specifically protects the rights of the minority from the will of the majority.
The First Crusade is initiated when Byzantine Emperor Alexius Comnenus requests help in reconquering from the Seljuk Turks the lost territory of Asia Minor . Pope Urban II at the Council of Clermont calls upon the princes of Christendom for an armed “pilgrimage” to recover Jerusalem from the Muslims.