66:7.17

The time measurement of these days was the lunar month, this period being reckoned as twenty-eight days. That, with the exception of day and night, was the only time reckoning known to the early peoples. The seven-day week was introduced by the Dalamatia teachers and grew out of the fact that seven was one fourth of twenty-eight. The significance of the number seven in the superuniverse undoubtedly afforded them opportunity to introduce a spiritual reminder into the common reckoning of time. But there is no natural origin for the weekly period.