What did the Middle Ages bring to humanity?

With the fall of the Western Roman Empire, the Middle Ages began. This era brought with it a new world order. One of the main features of the Middle Ages is the emergence and spread of the religion of Islam. It is also worth noting that this was the time of the Crusades, constant internal and external wars between states and feudal lords.

The European population suffered from oppression and disease. The Crusades brought with them an acquaintance with the culture of the East, which gave impetus to the development of European states.