1000 years after the death of the Queen, the first alicorn meeting took place on her grave. The first time it was called the Tree of Harmony, where everything was forgiven.
 
Until that, we were all like strangers, only the weather gods, new breeds of ponies, unicorns and pegasus, were scarce and they still needed us to control the weather.
 
That day, something in the tree made us Forgive, let peace come into our lives, we could not blame the queen for the death of our loved ones, our parents, older brothers and dear friends… nor their daughters.
 
We survived, equestria needed us and only that matter, ever since we began to treat us better. The princesses built her New Castle over the tree cave, to watch it, to learn, to understand its existence.
 
It was the beginning of a new era for everyone.