The Encyclopedia of Arda - Ruin of Beleriand

The destruction and war that came with the Dagor Bragollach and the breaking of the Siege of Angband. On a winter

The Encyclopedia of Arda - Blue Mountains

The Encyclopedia of Arda - Utumno

Of the Ruin of Beleriand and the Fall of Fingolfin - Tolkien Gateway

The Encyclopedia of Arda - Land of Mist

The Encyclopedia of Arda - Angband

What is the most interesting thing about Middle Earth that remains kind of unexplored? - Quora

Sindarin - Wikipedia

The Encyclopedia of Arda - East Beleriand

The Encyclopedia of Arda - The North

The Encyclopedia of Arda - Bar-en-Danwedh

The Encyclopedia of Arda - The West

Reader: The Silmarillion. Quenta Silmarillion, Chapter 24 “Of the Voyage of Eärendil and the War of Wrath”