The early part of Showa(1927-1945)

Main Events in Japan 1927 Tokyo subway (between Ueno and Asakusa)was completed 1931 the Manchurian Incident 1932 the 5.15 Incident 1934 Professional Japan baseball team (Giants) was established 1936 the 2.26 Incident 1937 Shino-Japanese war 1941 Japan participated in World War II 1945 Americafs atomic bombing of Hiroshima and Nagasaki Japan accepted Potsdam Declaration and war ended

Main Events in the World 1929 Great Depression began 1933 Hitler assumed the premiership of Germany 1939 World War II began 1945 Berlin fell United Nations was established

Energy-related Events 1929 Graf Zeppelin landed on Kasumigaura airport 1931 Haneda international airport opened 1938 light control began 1940 America stopped to export petroleum to Japan

Gas industry of those days in Japan

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