The probability is that all later associations with the symbol refer back to an early astrological origin (cf.
From this early astrological use the form of "glory" or "nimbus" has been adapted or inherited under new beliefs.
Here again we must distinguish between the week as such and the astrological week, i.e.
3 It is plain, however, that there is a long step between the astrological assignation of each hour of the week to a planet and the recognition of the week as an ordinary division of time by people at large.
Moreover, it is doubtful from extant remains of Assyrian calendars whether the astrological week prevailed in civil life even among the Babylonians and Assyrians.
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