Changes

*Sapporo means Dry land in Ainu.

*Sapporo means Dry land in Ainu.

*"Since a carved seal could be used by any subordinate, however, it was considered inferior to a kao, and in this sense, it was more polite to sign documents with a kao. Although a carved seal was often used to authenticate official documents addressed to subordinates, many feudal lords recognized the need to sign a letter to an equal partner with a kao." - Kinoshita Ryoma, "Browsing library materials—A look at documents from medieval Japan, Part 5: "Since I have eye trouble"―Medieval etiquette when using carved seals," NDL Newsletter 216 (Feb 2018). http://www.ndl.go.jp/en/publication/ndl_newsletter/216/21604.html

*"Since a carved seal could be used by any subordinate, however, it was considered inferior to a kao, and in this sense, it was more polite to sign documents with a kao. Although a carved seal was often used to authenticate official documents addressed to subordinates, many feudal lords recognized the need to sign a letter to an equal partner with a kao." - Kinoshita Ryoma, "Browsing library materials—A look at documents from medieval Japan, Part 5: "Since I have eye trouble"―Medieval etiquette when using carved seals," NDL Newsletter 216 (Feb 2018). http://www.ndl.go.jp/en/publication/ndl_newsletter/216/21604.html