Disambiguation evidence for Kamakura period via surface form

"confirmed the Kamakura shogunate as the central political authority in Japan"

Triples (1)

Triples where some other subject referred to this entity as "confirmed the Kamakura shogunate as the central political authority in Japan".

Jōkyū War → significance →
"confirmed the Kamakura shogunate as the central political authority in Japan"
↳ resolves to Kamakura period
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