How did greek mythology begin?

in Greece, there were trying to find explanations for natural occurences

After Cronus (time) was born, Gaia and Uranus decreed no more Titans were to be born. Cronus castrated his father and threw the severed genitals into the sea, from which arose Aphrodite, goddess of love, beauty and sexuality. Cronus became the ruler of the gods with his sister-wife, Rhea, as his consort.

Explanation:

It is difficult to know when Greek mythology started, as it is believed to have stemmed from centuries of oral tradition. It is likely that Greek myths evolved from stories told in the Minoan civilization of Crete, which flourished from about 3000 to 1100 BCE.