Europe was called the Middle Ages from 500 A.D. to 1500 A.D., and it has always been regarded as the darkest period in Europe. The invasion and settlement of barbarians caused the collapse of the Roman Empire and almost caused the complete destruction of European culture at that time. In this context, the feudal system in western Europe was produced and developed on the ruins after the fall of Rome through the integration of Germanic, Roman and Christian factors. Chivalry system also came into being in medieval Europe, which was a feudal vassal system gradually produced and established in the process of feudalization in Europe. European countries in the Middle Ages were a loose collection of territories.

In a country, emperors, kings, dukes, etc. Are the supreme lords, and other big noble swore allegiance to them in exchange for fiefs-"fiefs", thus becoming vassals of the supreme lords. These vassals can have their own vassals until knights with little or no land, thus forming a complete feudal hierarchy in Western Europe.

The Middle Ages in Western Europe are generally regarded as a period of cultural decline, even a period of "darkness", and the reasons for this "darkness" and "cultural retrogression" are entirely attributed to the Christian church. In fact, in the early Middle Ages of Western Europe (5- 1 1 century), church activities made great contributions to the development of Western European culture under specific historical conditions. Christianity is a classical culture.

Modern Europe has become the locomotive of world progress, and the modern civilization born from modern Europe has influenced the trend of modern world history with its great influence. The concepts of human rights, democracy, rule of law, harmony and science have been widely accepted in the world today. Great geographical discoveries have brought the world closer together, and the eastern and western worlds have since become an inseparable whole. Modern European civilization developed on the soil of medieval Europe. The Middle Ages in Europe is a unique historical period. The Germanic kingdoms, which grew up from the ruins of the Roman Empire, gradually merged Germanic and Roman factors and formed a unique series of systems contained in the feudal system in Western Europe.