さかのぼったそうだ【
遡ったそうだ
】

sakanobotta sōda

Godan Verb (ru)

,

Evidential Auxiliary

Expresses hearsay about a past event ("I heard that...") of さかのぼる

1. Apparently; It seems; I heard that…; It is said that…

Past/Perfective

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Hearsay Evidence

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Usually Written in Kana