Where have all the ancient imperial letters gone? Are there any homeless people?

Imperial edicts are equivalent to orders or imperial edicts issued by the emperor. In ancient times, most of the imperial edicts were lost due to war or age, but some of them still existed. The Qing dynasty is closest to the present era, so the Qing dynasty has the most (in museums, memorial halls, etc.). I'll give you a copy of the imperial edict of the Ming Dynasty.