It is probably impossible to imagine a more ancient deity than the Great Goddess. Her images, in the form of a full-breasted and wide-hipped figure with only slightly marked facial features, are found in the territories of ancient Europe, Asia Minor, and the Middle East.
Until now, the oldest image of her found is the Venus of Willendorf, a small statuette created more than 29,000 years ago, in prehistoric times during the Paleolithic era. A great amount of time has passed since this statuette was made and the image of the goddess has changed significantly. The unified idea of her has disintegrated into the veneration of many separate deities. Her incarnations can be found in various traditions. For example, in ancient Egypt, she was called the mother of all things Isis, the goddess of love Hathor, the protector Bastet, fierce Sekhmet, and the great Taurt.
In ancient Greece she was worshipped as the personification of the earth Gea, the mother of the gods Rhea, the goddess of fertility Demeter, the loving Aphrodite, the perfect Artemis, and the key to the universe Hecate.
The Celts honored her as full of determination Badb, without pity smashing Morrigan, the great Maha and good doula Brigitte.
The ancient Slavs knew her as spinning the thread of fate Makosh, beautiful Lada, gentle Lelu, and frightening Mara.
The Great Goddess can take very different forms in different cultures, but she always remains the Mother of the World in her most fierce form.

On the one hand a lot, and on the other hand practically nothing. The traces of worship are found by archaeologists in deep antiquity almost all over prehistoric Europe, but, unfortunately, most of the peoples who worshiped her, had no written language and now we can only make hypotheses about what myths were told about her in those times and what were rituals in her honor. We have been left from them only ceramics painted with a pattern in the form of double spirals, stone slabs with carvings, rock art with scenes of hunting, and figures of full-breasted and wide-breasted goddesses with schematically depicted facial features. Although maybe all this is not so important, because the Great Goddess personifies the planet we live on, everyone who wants to, can address her and be heard here and now. The whole planet Earth is She. It is her temple. She does not hide in tall buildings with thick walls. She does not need massive gilded altars. Her presence is universal. The language of the goddess is figurative and diverse. She can be found in the wind blowing and the song of an inconspicuous bird among the dense foliage and in the shifting heavy yellow sand on the river bank. It is easy for a person to be heard by the goddess and she finds her own words for everyone who addresses her. The only thing needed is to pay attention to these words.