…

The Paleolithic, Neolithic, Bronze Age, and even the Classical Age in Europe are not to mention - there are so many histories involved that I am afraid that it will not be enough to talk about in three or five days.

Short section.

It was not until the establishment of the Roman Empire that Europe was unified, powerful and unprecedented, with the Romans expanding their territory to all of Italy, followed by the entire Mediterranean periphery and Western Europe.

Later, the base religion was legalized under Constantine the Great.

It was only a few generations later that the religion became the official religion of the Roman Empire, and the Roman Empire was divided into two.

Barbarian tribes then began to invade the Western Roman Empire, the Visigoths were one of the first tribes to cross the Roman border to the south and west into the territory of the former Roman Empire, and in the early fifth century, they laid siege to Rome three times.

Later, the Visigoths established the Visigothic kingdom on the territory of the former Roman Empire.

Decades later, the last emperor of the Western Roman Empire was deposed.

Europe entered the Middle Ages.

At this time, parts of Southeastern Europe and the Mediterranean were still under the control of the increasingly besieged Roman Empire, albeit ruled by Constantinople rather than by Rome.

Under Emperor Justinian, Roman forces restored imperial rule over most of the Mediterranean.

But the territory of this expansion of the Roman Empire began to erode in the late sixth century.

Constantinople's control over the western territories began to wane, and more Germanic people invaded and established kingdoms.

This remnant of the Roman Empire is generally referred to as the "Byzantine Empire".

By the seventh century, the Arab Empire had risen and became a staunch promoter of Muslim religion.

With the support of the powerful Arab Empire, the provinces of the former Roman Empire in the Middle East and North Africa were occupied by the Arab Empire and rapidly Muslimized.

In the eighth century, Charlemagne was crowned king by the Pope.

However, Charlemagne's territory was divided two generations later, and Europe was attacked by three groups: the Vikings of Scandinavia, the Muslim religions of North Africa, and the Magyars of Hungary.

Responses to these attacks have varied – some regions have banded together to defend against the threat, while others have looked elsewhere.

Towards the end of the last millennium, the Near East had largely stabilized, there was some equilibrium between the Byzantine Empire and the Arabs, the road to Jerusalem was open and safe, and the Holy Land was in the hands of the Muslim religion, which was both a holy place for the base religion and a holy place for the Muslim religion, attracting countless devout pilgrims.

But this balance was upset by the Seljuk Turks - after the death of Emperor Basil II, the empire fell into the struggle between the two families of the Ducas dynasty and the Komnenian dynasty, and more seriously, the Slavs in the north, the Normans in the western Mediterranean and the Turks in the east began to pose a threat to the empire at the same time, especially the Seljuk Turks, who after the collapse of the Arab Empire, poured into the Middle East in large numbers, converted to the Iyi religion, established the Seljuk Empire in the middle of the eleventh century, in the battle of Manziket in Asia Minor, The Turks defeated the Byzantine army and captured Emperor Romanus IV, and the Byzantine Empire was so defeated in the wars of the Near East that the capital Constantinople was under strategic siege by the enemy.

Moreover, the Turks were not as civilized as the Arabs, and they made things difficult for European pilgrims to the Holy Land, imposed heavy taxes, and regularly plundered and humiliated them.

When this situation spread back to Europe, it caused great anger in the religious community.

Under pressure from the Turks, the then Byzantine Emperor Alexios Cumnius finally had to ask the Pope and the Western Church for help in defeating these pagan enemies - he wrote to Pope Gregory VII, asking the West to send a mercenary force to help him regain his lost territory, and the spoils along the way would go to the mercenaries, promising that the Church would be reunited under the authority of the Pope.

Gregory VII was so moved that he planned to personally lead a great army of the Christians to fight the enemies of God until the place of God's tomb.

But soon Gregory VII was caught up in a long struggle with the German Emperor Henry IV and later died of depression.

The plan for this crusade was inherited by Urban II, the successor of Gregory VII.

The appeal of Emperor Alexios led Urban II to begin a grand idea: the Western religious world would make great efforts to recover the Holy Tombs; The concentration of armies in the name of the pope would allow the rulers of Europe to stop fighting each other and bring peace to Europe; The idea of religious unity could thus be carried to the East, and eventually even the long-standing discordant Church of the East and the West could be reunited under the papal rule.

The First Crusade began from there.

The Crusaders crossed the sea from near Constantinople into Asia Minor, captured the capital of the Sultanate of Rûm, Niceia, and then Edessa and Antioch, establishing the first Crusader states, the Adesabeth and the Duchy of Antioch.

Soon after, the Crusaders conquered the Holy Land of Jerusalem and established the Kingdom of Jerusalem in Jerusalem.

After Li Yan defeated the Turks and occupied Central Asia, he did not provoke these Crusader states—Li Yan did not want to go to war with Europe before.

However, with the Second Crusades, some of the Crusaders began to swell as the Crusaders easily defeated the Turks who had been greatly defeated by the Chinese army after entering Asia Minor.

The crusaders, led by King Conrad II of Germany and King Louis VII of France, foolishly decided to attack the worthless target Damascus.

At this time, the Muslim religion in Damascus was still a strong ally of the religion.

More crucially, Damascus now has the surname "Zhong", which is part of the "Tongguo" established by Li Yan's son Li Tong.

Thus, the foolish claims of King Conrad II of Germany and King Louis VII of France were unanimously opposed by the Crusader states, who insisted that the Crusaders attack Aleppo, the greatest threat to the Crusader states, and recover Edessa, which was still under the control of the Turks.

King Conrad II and King Louis VII of France did not listen at all, and stubbornly went to attack Damascus.

It was at this time that Li Yan decided to go to war with Europe.

Actually-

Li Yan's decision to start a war with Europe had little to do with the Crusaders' attack on Damascus, the main reason was that Li Yan wanted European territory and European beauties.

But—

The Crusaders' attack on Damascus gave Li Yanxi a plausible excuse - the Crusaders suddenly attacked Damascus, which caught Li Tong off guard, and even more unfortunately, Li Tong was killed in the process of resisting the Crusader invasion, and after defeating Damascus, the Crusaders led by King Conrad II of Germany and King Louis VII of France also carried out a bloody baptism of Damascus.

At that time, Yue Fei and Liu Qi, who were already halfway away, heard about this incident and immediately raised the banner of avenging Li Tong and the people of Damascus, and accelerated their killing to Damascus......

……