In the beginning, there were two gods, Primus and Unicron. where they came from, we do not know. The one who created them is only known as "the one." The brothers traveled together for a time, exploring the universe. but they saw it differently. Primus was amazed by life and all of the beautiful things on the planets they passed, but Unicron saw it all as inferior and wanted to destroy it all. Eventually, Primus tried to stop Unicron. They fought a battle that raged across the cosmos, neither one able to best the other. But Unicron grew stronger. He devoured planets, and gained more energy. Primus knew that he could not win, that eventually he would be overtaken. No matter where in the universe they were, the Gods could find each other. So, Primus hid. He changed the game, turned the table. He took himself out of the game, because he knew he could not win. He shifted into a new form, and powered down to an eternal slumber. He created new beings to stop Unicron, giving them each a part of his own power, something that Unicron could never do. He created the Thirteen Primes. Soon, Unicron would be defeated.