History of Middle Earth What is Needed?

[Formendacil]

Originally Posted by R.R.J Tolkien

So than much of the published sil comes from Tolkiens later writings post 1937?

There are good chunks that date back before 1937--and, certainly, the overall structure of the "Quenta Silmarillion" is basically the 1937 text, but Tolkien expanded quite a bit (especially from before "the Great Tales") after writing The Lord of the Rings.

Actually, most of what Morgoth's Ring and The War of the Jewels are about, where they deal directly with Silmarillion texts, is showing what parts of the Silm are pre-1937 and what are post-LotR, because Tolkien didn't start over after the LotR--he took his pre-1937 drafts and expanded on them--directly on them, in some cases.