The Big Bang. The universe is created, formed of vapor and forged with fire. Great energies are born and just as quickly dies as that which was formless struggles to find a form, and that which is without reason seeks purpose. Out of this is born that which is eternal, that which is all and beyond all... The Source. This point in time is often referred to as the "First World".
Using his special time-bending device Krona gazes unto the beginning of the universe and ends up unleashing the Anti-Matter Universe.
At the moment of creation the entity known as The Voice, as well as the two eternal forces known as Order and Chaos also come into existence. Some evidence even indicate that the Source and the Voice are but two aspects of the same. Shortly after the creation of the universe, when the Voice first opens its mouth it creates the Word. Before it is ever spoken aloud, the word was traced by the hand of the Endless known as Destiny on the first pages of his book.
The time-travelling Spectre finally succeeds in defeating Shathan. Showcase #61 (March 1966), "Beyond the Sinister Barrier"
The next three of the Endless to come into existence are Death, Dream, and Destruction. It is known that Destruction, the youngest of the three, come into being as the first sentient beings emerges in the universe.
Entities known as the Aurakles also come into being at this time.
At some undisclosed point early in the creation of the universe, however after the first four of the Endless, the Archangels known as Lucifer, Uriel, Raphael, Michael, Saraquael, Gabriel, and Ragual come into existence. Early on one-third of the angels of Heaven, led by Lucifer, rebel against their master and are banished to the metaphysical realm that will one day become known as Hell.