Darkness and Night giving birth to Light and Day.. That's like two negatives generating positives.. :D :D
That's why I love this mythologies.. They were somewhat different and creative in their days.
Also, Gaia (Earth) gave birth to Ouranos and then later on married him.. ?! Waaaaa ?
Cool article, but may be you can add some more images to make it better..
RE: Greek Mythology: The Creation of the Universe