After the Thirty Years' War, the Holy Roman Empire was basically just a name (although it was still very useful). At that time, Austria was not only the nominal suzerain (similar to Zhou in the Spring and Autumn Period), but also the most powerful fief in the Holy Roman Empire.

But this situation began to change in Frederick II, who made Prussia catch up with Austria through a series of foreign mergers such as the Seven-Year War. Although Prussia suffered heavy losses in the Napoleonic Wars, this history also made Prussia realize the importance of education-at that time, France only gave first-class education to officers, and Prussia directly began comprehensive education. Frederick III said, "It is because of poverty that we want to run education. I have never heard that a country is poor because of education and will eventually perish. In my opinion, education will not only make the country poor, on the contrary, education. Therefore, Germany completed the earliest universal compulsory education in the world within half a century, and the modern university system was born here.

After the education problem was solved, Germany's economic strength gradually increased-such as the birth of Siemens. Then, under the impetus of a row of capable people such as Bismarck, the hot-blooded prime minister, Germany was finally unified.