It’s also kind of an explanation for why England has no magic left. As you move forward in time the magical races and beasts all slowly die out. In the Hobbit t

It’s also kind of an explanation for why England has no magic left. As you move forward in time the magical races and beasts all slowly die out. In the Hobbit the last dragon dies. In LOTR we see the elves leaving Middle Earth, the last march of the Ents, the end of the rings of power, the end of the wizards, the killing of a Balrog.. setting up the age of Men. And as you go further back in time it gets even more magical and outlandish.