Era name was an East Asian imperial practice of numbering years in an emperor's reign. It originated as a motto or slogan chosen by a the emperor. Different East Asian countries utilized slightly different systems:
... Potter Gallery[?], Hawkshead[?]
Cumberland Pencil Museum[?], Keswick
Dock Museum[?], Barrow-in-Furness[?]
Kendal Museum[?]
Museum of Lakeland Life[?], ...