Combined with the knowledge and materials learned, this paper talks about the significance of setting up a national public holiday day.

The establishment of a national public holiday day is conducive to reminding ourselves to face up to history, cherish the past and fear life.

National public holiday is a festival for a period of history that needs to be remembered frequently. During War of Resistance against Japanese Aggression, Japanese invaders brutally invaded Nanking. In the 40-day massacre, 300,000 compatriots were killed, leaving the darkest page in the history of human civilization. The bitter history, the blood and tears of broken mountains and rivers, the tragedy of untold sufferings and the pain of devastation are engraved in the deep heart of every China people, forming a national memory.

Just as Europe commemorates the victims of Auschwitz once a year, the National Day of Public Sacrifice for the victims of the Nanjing Massacre is not only in China, but also in the world. The world significance of formal commemoration and public sacrifice in the name of the country lies in that it can keep human historical memory awake for a long time. It is a past that has passed but cannot be forgotten. It is a past that warns us to constantly strive for self-improvement.