When did the story of Blade of the Immortal take place? Eastern and Western Readers have different answers (Part 1)

Japanese reader suggested that the story take place in 1792, back in 2003

1792-theorists are from the East, 1782-theorists are from the West

Most English sites and the English manga itself say the story takes place in 1782. Top: About the Translation in Dark Horse Comic’s ebook. Bottom left: Blade of the Immortal Wiki. Bottom right: Dreamwidth.org and Hollywoodhatesme.
Chinese media and websites say the story takes place in 1792. Top left: gamer.com.tw Top right: Wikipedia Bottom left: Ettoday Bottom right: Orientaldaily

Four arguments for the 1782-theory

Manji comes back to Japan in Bakumatsu Arc of Blade of the Immortal, ©2009 Kodansha

Seven arguments for the 1792-theory

The interrogation in Chapter 45, Blade of the Immortal, ©1998 Kodansha
Comparison of the World Line based on Japanese manga and English ebook

It must be 1792–1793 (by the book)

Introductions of Oichi and Omitsu, Blade of the Immortal vol 25, ©2009 Kodansha

Yamada’s death is not in line with history either way

Yamada Asaemon Yoshiro, Chapter 132, Blade of the Immortal, ©2006 Kodansha

Offended by bad writings and layouts very, very easily

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