Historical Circumstances

HIROSHIMA BEFORE THE BOMBING

Hiroshima was built on a delta formed by deposits of dirt and sand carried from the upper reaches of the Ota River. The city prospered during the Edo period (1603-1867) as the largest castle town in the Chugoku and Shikoku regions. After the Meiji Restoration (1868), the city was born anew as the capital of Hiroshima Prefecture. The land reclamation that had progressed during the Edo period was expanded on an entirely new scale during the Meiji period. Large tracts of land were developed and an outer port was constructed. The industrial economy developed at a rapid pace. In addition, many army facilities were built and the city became an important military center. It also became an important city in terms of education and culture. Many schools were built, including the Higher School of Education which trained teachers. Hiroshima gradually assumed two distinctive images: a military city and an education city.

In the early Showa period, around the 1930s, heavy industries related to the military began to develop. The Hiroshima Bay area, including the navy port at Kure, became one of the few military bases in Western Japan during wartime.

Showa Period and Wartime (1925-1945)

Japan's war on the China mainland was triggered by the Manchurian Incident of 1931 and developed into a full war with China in 1937. In addition, Japan took on the United States, United Kingdom and other Allied Forces when it launched the Pacific War with its attack on the US military base at Pearl Harbor, Hawaii in December 1941.

All the factories in Hiroshima cooperated with orders from the government and rapidly converted from producing civilian goods to military supplies. The daily life of citizens became difficult and many were mobilized to serve in battle or in military factories.