The presidential library in America is unique to America. It is not a library in the traditional sense. It is both an archives and a memorial hall. It not only keeps the president's archives, but also collects gifts, personal belongings, books, works of art, currency, stamps and other collectibles accepted by the president. Therefore, it is actually a place where historical materials such as presidential archives are kept centrally and services are provided. However, the United States did not realize this for a long time, so it failed to properly handle the problem of the presidential library. Improper handling of this problem has caused great losses to the archives of the president of the United States. 20 13 April, the Kennedy Library in Boston exploded.