What hypotheses can be put forward by observing solar and lunar eclipses? behind the change of day and night?

What hypotheses can be put forward by observing solar and lunar eclipses? behind the change of day and night? for the changing seasons?

Solar Eclipse – The Moon completely or partially obscures the Sun from an observer on Earth. Lunar eclipse – Luga falls into the shadow of the Earth, Change of day and night – the earth makes a complete revolution around its axis in a day. Changing seasons – the Earth makes a full revolution around the Sun in one year.

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