Holy Smokes, Batman.
Okay, stop posting just to post posts.
You already have an enormous amount of posts, don't get greedy.
Anyway. What were we talking about?
Beleriand was the crowning glory of the world(next to Valinor). It was the most beautiful and rich land of all the earth. The elves thrived there for three ages. When men came, it was already occupied, so the Valar gave them Numenor. Of course
they got
greedy, and their lovely paradise was destroyed. They had become masters of the seas, and had started many havens along the coasts of Beleriand. So those were taken out, too. As was much of Beleriand. The only part to survive were the high mountains and the foothills of Ered Luin(Lindon).