Why do the Japanese know so much about the history of China?

Because ancient China was at the center of dominating the world for a long time, with advanced politics, prosperous economy, splendid culture and strong national strength, the Japanese stopped at the top of the mountain. Although this influence has been weakened in modern times, culture has continued to this day. Today, China is building a socialist system rare in the world, with remarkable achievements and increasing national strength. As a neighboring country like China, I often feel uncomfortable!