The Great Roman Empire, which began as an idolatrous Pagan Empire, soon conquered Europe, North Africa, and Syria and Palestine. The Jewish state became the province of Judea in the Roman Empire.
In 306, the Roman emperor Constantine converted to Christianity, and Christianity spread to the Roman-occupied territories of Europe, Africa, and Syria and Palestine.
In 395, the Roman Empire split administratively into two parts due to its size.
A Western Roman Empire centered in Italy, Rome, and Christianity was called Roman Catholicism. The empire ruled over continental Europe.
The second Byzantine Christian Empire centered in Istanbul. It was Constantinople, and ruled over North Africa, Anatolia, Syria, and Palestine. Christianity here is called Orthodox Christianity.
In 1099, the Western Christian Empire declared the Crusades in the Islamic Middle East. The invaders were called European crusaders.
During the Fourth Crusade, the Crusaders of the Western Christian Empire sacked Constantinople, the center of the Byzantine Orthodox Christian Empire.
This incident brought the hatred and division between the two empires to an irreversible level.
In 1453, the Ottoman Caliphate annexed Constantinople, the capital of the Eastern Byzantine Christian Empire.
In the same century, the Jewish conspiracy against the Western Christian Empire, the Renaissance, an anti-religious movement, began, leading to the decline of the Western Christian Empire and the persecution of the Antichrist.