"Once upon a time, there was a glowing city protected by golden gates, known as Heaven. It was ruled by beings of pure light. Angels that worshiped good and shielded all from evil. Lucifer was one of these angels. He was a dreamer with fantastical ideas for all of creation. But, he was seen as a troublemaker by the elders of Heaven. For they felt his way of thinking was dangerous to the order of their world."
January 1, 1970
https://en.wikiquote.org/wiki/First_lines_in_animated_TV_shows