Dating Japanese Maps

You may find a conversion table from Edo-period eras (gengō 元号, or nengō 年号) into the Gregorian calendar under the following link:

https://wolfgangmichel.web.fc2.com/serv/hayamihyo1.html

Author: Wolfgang Michel-Zaitsu

If you want to find more information on Japanese dating practices and if you to try to date Japanese maps, visit the dating exercise of this unit.