Philosophaie said:
An equinox is a celestial event that occurs twice a year, in which the tilt of the Earth's axis is at a 90 degree angle to the sun. This causes the length of day and night to be nearly equal in all parts of the world.
Equinoxes occur around March 20th and September 22nd every year. The exact date and time may vary slightly, but it typically falls within these dates.
In many cultures, equinoxes hold symbolic and spiritual significance. They mark a time of balance and transition, where the length of day and night are equal. Many ancient civilizations also used equinoxes to help track the change of seasons.
The old fable about the equinox is the story of Persephone and Hades from Greek mythology. According to the fable, Persephone, the daughter of the goddess Demeter, was kidnapped by Hades and taken to the underworld. Demeter, who was the goddess of harvest and fertility, was devastated and caused the earth to become barren. Zeus eventually intervened and made a deal with Hades to allow Persephone to return to the surface for half of the year, resulting in the changing of the seasons.
While the old fable is a myth and not based on scientific evidence, it does reflect the changing of seasons that occurs during equinoxes. As the Earth's axis tilts towards or away from the sun, it causes the change in seasons. So, in a way, the equinox can be seen as a scientific explanation for the changing of seasons that is reflected in the old fable.