How did the world start? Well, that depends on how, exactly, you define “the world”, doesn’t it?
If you mean Earth as a planet, it started thanks to gravity pulling together a collection of dust and gas orbiting the early sun through a process called “accretion”.
Animals have no concept of “morality” so good and evil didn’t exist until humans invented them. Sumerian cuneiform records early religious rites from 4,000 BC, but the concepts of “good” and “evil” like fire and the wheel pre-date written language and cannot be precisely dated.
Human beings are born as blank slates with no prior knowledge of good, evil, or anything else. All that is learned behavior. They are inherently neither.