My second new 2E world is called The Second World. The name was meant to be just a placeholder; however, I’ve built a good back story to go along with it. In a nutshell, the First World gave birth to The Second World.
The First World was a place of advanced mechanisms and powerful arcana. It destroyed itself eons ago. The world nearly died. Its races were thrown back to a Stone Age-like state. Nature took back the planet and all the civilizations of the First World were washed away by rising flood waters, buried by earthquakes and landslides, or overgrown by the greenery that now covers most of the world.
The races, initially, were forced to band together to survive. As time marched on, the world’s various peoples either went their separate ways or remained closely united. Regardless, each race passed down its stories of cooperation and respect for the other races of the world. And while some of these tales have been lost to the eons, the stories of the dwarves, elves, and gnomes have survived pretty much intact to this day. The written stories of the humans, halflings, and orcs have become a mixture of their original racial tales.