1, the Eastern Roman Empire, which lasted for thousands of years, finally perished, and an era was over. Since then, the Orthodox Church can only be confined to a corner of Eastern Europe, and it can no longer compete with Catholicism for the leadership position in the Christian world.

2. It means that Islamic civilization rises again and poses a serious threat to the Christian world. After the division of the Arab Empire, the Islamic world has been in a state of division, and the Ottoman Empire ended this state and ruled the middle of the Islamic world.

3. Cut off the Silk Road from Europe to China, promoted the development of European navigation, developed the routes from Africa to China and India, and made Columbus discover the new continent, and the era of great navigation and colonization came.