Possibly seasons.
Laws
large constructs explaining events in nature that have been observed to occur with unvarying uniformity under the same conditions! Usually mathematical representations of repeated observations.
The word that matches the definition of occurring in a repeated series is "cyclical." It refers to events or phenomena that recur in a predictable pattern or sequence over time. This term is often used in various contexts, including nature, economics, and literature.
Repeated multiplication is called raising to a power.
The duration of Nature's Great Events is 3000.0 seconds.
That would be known as a recurring motif in storytelling, where specific plot events or themes are intentionally repeated to create a pattern or reinforce a particular idea in the narrative.
a periodically repeated sequence of events
Nature's Great Events ended on 2009-03-18.
Nature's Great Events was created on 2009-02-11.
The repeated occurrence of an event in a predictable way
The word is cycle. It means a series of events that are regularly repeated in the same order.
That is known as an empirical statement or an empirical observation. It is rooted in evidence gathered through direct experience or observation of the natural world.