Industrial revolution The industrial revolution that began in Britain in the mid-18th century spread to Western…
1. prologue
History of the fortress of Tokyo Bay
What was happening in the world before the construction of the fortress of Tokyo Bay started in the Meiji era?
Let’s trace the history back to the Edo period.
-
-
2. Awareness of the necessity of fortifying sea defense
After the Industrial Revolution, the power of the Western countries had expanded to Asia, Africa and… -
3. Proposal of the construction of Daiba. (Tokyo Bay Sea Defense Plan) 1839
Egawa Tarozaemon Hidetatsu (1801-55) who was ”Daikan” (the local governer) of Nirayama (Nirayama of Shizuoka Prefecture),… -
4. The first artificial island of Tokyo Bay“Shinagawa Daiba” 1854
Egawa Tarozaemonhidetatsu ordered by the Shogunate again to plan the Edo Bay Marine Defense after the… -
5. Two remained Daibas (batteries)
No.3 Shinagawa Daiba is the park where you can walk in. Although Shinagawa Daiba (battery) ended up… -
6. Tokyo Bay Sea Defense Plan by Meiji Gov.
The Meiji New Government worked on "the Tokyo Bay Defense Program" to protect the Imperial Capital”Tokyo”.… -
7. Fortifying Japanese archipelago by Aritomo Yamagata
Aritomo Yamagata ruling the Imperial Army as a Marshal from the Meiji era to the Taisho… -
8. The pioneer of modern fortress construction
The Tokyo Bay Fortress is the group of artillery batteries constructed and deployed around the mouth… -
9. Necessity of three Sea Forts
Major Hisataka kuroda of Imperial Army who took a key role of Tokyo Defense Planning and… -
10. Strategy influenced by performance of cannons
Since Meiji 13 (1880), Imperial Army launched full-scale construction of fortress and planned initially to deploy… -
11. Change of Defense Line
The construction of Tokyo Bay Fortress started in Meiji 13 (1880) from Kannonzaki battery and 24… -
12. Damages by the Great Kanto Earthquake
The Great Kanto Earthquake struck on September 1 Taisho 12(1923), nine years after the completion of… -
13. Destroy by Allied forces after the defeat of World War II
On August 14, 1945, the Kantaro Suzuki Cabinet accepted the Potsdam Declaration and the war ended.… -
14. Deterioration by sea wave and collapse by aging
As No.2 Sea Fort is located at the mouth of Tokyo Bay and has been exposed… -
15. Safety management of development and maintenance route
Tokyo Bay is an important sea area that supports economic and social activities in the Tokyo… -
16. Chronology of No.2 Sea Fort
Japanese Calendar Western Calendar Events of Sea Defense Edo Kanei16 1639 National isolation regime was established…