Second Age 521
- ↑ Silmariën's birth-year was originally stated as 548 in "The Tale of Years"; Christopher Tolkien stated "I think it very likely that this should have been revised but escaped notice." This error has since been corrected to 521 in the 50th Anniversary Edition of the The Lord of the Rings.
- ↑ Wayne G. Hammond and Christina Scull (eds), The Lord of the Rings: A Reader's Companion, pp. 713-4
- ↑ J.R.R. Tolkien, Christopher Tolkien (ed.), Unfinished Tales, "The Line of Elros: Kings of Númenor", entry "IV Tar-Elendil" and note 4
- ↑ J.R.R. Tolkien, The Lord of the Rings, Appendix B, "The Second Age", entry "512"