Even though the dates public notices were sent is written in "Azuma Kagami," most of the documents seem not to have been preserved in the government office since that day.
何月何日にこういうお達しがあったと『吾妻鏡』に書いてあっても、その書類はその日から幕府の役所に保管されたものではない場合が殆どと推定される。