Some Ans. Questions 2014 by -'Abdu'l-Bahá- 1 Para

Answer: Each of the luminous bodies of this limitless firmament has its cycle of revolution, that period wherein it completes the full circuit of its orbit before beginning a new one. The earth, for example, completes a revolution every 365 days, five hours, forty-eight minutes and a fraction, and then begins anew along the same orbit. In the same way, the entire universe, whether with respect to the realm of nature or the realm of man, proceeds through cycles of major events and occurrences (41:2)

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