The modern Tokyo Metropolis was born in 1943 by merging the city and prefecture
During the height of World War II, the legendary city of Tokyo underwent a radical administrative transformation that merged its local government with the surrounding prefecture to create a unique global metropolis.
On July 1, 1943, the modern administrative structure of Tokyo was born when the City of Tokyo and Tokyo Prefecture were abolished to form the Tokyo Metropolis. This change was largely driven by the pressures of World War II, as the central government sought more direct control over the capital's resources and defense.
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