[trivia] October 1st is Seal Day

Established by the All Japan Federation of Seal Industry Associations.

On October 1, 1873 (Meiji 6), a proclamation by the Grand Council of State required official documents to be stamped with a registered seal.

Seals are also known as seals, seals, and seals, and are stamped on documents as a mark of an individual or group to prove their responsibility and authority.

In Japan, the gold seal of ``King of the Han Committee'' discovered in 1784 is famous as the oldest.