 His rule is recorded as far south as Sanchi, where one and possibly another inscription in his name have been found, dated to the year 22 (The Sanchi inscription of "Vaskushana"-i.e.Vasishka Kushana) and year 28 (The Sanchi inscription of Vasaska-i.e.Vasishka) of a Kushan era (widely thought to be the second century of the Kanishka era).