さかのぼる: to go back (in time)
さかのぼる sakanoboru
to go back (in time); to go upstream
JLPT N2History & religion
Example sentences
川をさかのぼると、アシナヅチとテナヅチという老夫婦が、娘のクシナダヒメと、泣いていました。
Going up the river, he found an old couple, Ashinazuchi and Tenazuchi, weeping with their daughter Kushinada-hime.
From the lesson ヤマタノオロチ