The great beauty and striking presence of Venus led to an association by the Greeks with Aphrodite, goddess of beauty and love. Inanna, Ishtar, Astarte and Venus are other names given to variations of this goddess in Western history, all associated with the planet. A knowledge of close coincidence between the cycles of Venus and human pregnancy may have contributed to the persistent, but nonexclusive of female characteristic to Venus. Western attributes The Venus de Milo and Botticelli's Birth of Venus (popularly known as Venus on the Half Shell) are icons of this imagery in Western culture.