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500
Creation
Sumo is created -
Edo period
Sumo becomes a popular form of entertainment -
Sumo becomes a sport
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Meiji period
Sumo establishes professional associations -
Globalization
Sumo gains intenrnational popularity -
Tournaments are created
Regular Tournaments are established -
Post WWII Reconstruction
The Japan Sumo Association is formed -
Modern era
Sumo reaches all the countries