These rights only include material from The Lord Of The Rings and The Hobbit. So anything that's mentioned in those books (including Lord Of the Rings' lengthy appendices) is fair game, but anything exclusive to The Silmarillion, Unfinished Tales, or Christopher Tolkien's 12-volume History of Middle Earth, is off limits. So the Amazon series probably can't touch The Fall of Gondolin, for example. But Númenor is fine. However, some recent reports suggest that the relationship between the new production and the Tolkien estate has been good enough that the latter have allowed some leeway. So we may see some encroachment on the strict letter of The Silmarillion after all.
https://www.empireonline.com/movies/features/amazon-lord-of-the-rings-series/
Mogu samo da pominju pojmove iz LOTR i Hobita - sve ovo ostalo od Kristofera đoka