There may be a much earlier, deeply imbedded, aspect to this observance, as well. However, this has to do with a facet of the moon (هبل), and I shall make no further mention of this. And... in answer to your second question; yes.
CmacQ
quae res et cibi genere et cotidiana exercitatione et libertate vitae
Herein events and rations daily birth the labors of freedom.
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