Ouranos had murdered his father Cronus, first of the gods, who was also the father of the Titans, predecessors to the Olympian gods. Someone (an oracle of some sort - I forget who) told him that one of his children would murder him in the manner he had murdered his father. So he ate each of his children as they were born - except that Gaia kept the last of them (Zeus) safe by wrapping a stone in infant clothing, which Ouranos then ate.
It was Zeus who slew his father, freeing his siblings (who apparently weren't killed by being eaten), who then waged war against the remaining Titans. Fun fact: Aphrodite was born out of the dismembered remains of Ouranos after they had been cast out to sea.
Since Ouranos was killed, and his brother Titans lost to the Olympian gods, it is no surprise that no cult to him arose.
That's as much as I recall... feel free to check/correct.
“So he ate each of his children as they were born”
There’s a painting by Reubens that depicts him eating his children. I recently downloaded a series of classical myths to iTunes which is great but I’m not at the PC upon which I have them.
Thanks GCC Catholic and Nateman.
But I'll have to say that the modern day Beavis and Butthead take might actually be a little less perverted than the ancient mythology. lol