The Lord of the Rings has part(s) Appendices of the Lord of the Rings
Appendices
The appendices outline more details of the history, cultures, genealogies, and languages that Tolkien imagined for the peoples of Middle-earth. They provide background details for the narrative, with much detail for Tolkien fans who want to know more about the stories.Appendix A: "Annals of the Kings and Rulers"
Provides extensive background to the larger world of Middle-earth, with brief overviews of the events of the first two Ages of the world, and then more detailed histories of the nations of Men in Gondor and Rohan, as well as a history of the royal Dwarvish line of Durin during the Third Age.The embedded "Tale of Aragorn and Arwen" tells how it happened that an immortal elf came to marry a man, as told in the main story, which Arwen's ancestor Lúthien had done in the First Age, giving up her immortality.
Appendix B: "The Tale of Years" (Chronology of the Westlands)
It is a timeline of events throughout the series, and ancient events affecting the narrative, and in lesser detail, it gives the stories' context in the fictional chronology of the larger mythology.It also tells that Sam gives his daughter Elanor the fictional Red Book of Westmarch – which contains the autobiographical stories of Bilbo's adventures at the opening of the war, and Frodo's role in the full-on War of the Ring, and serves as Tolkien's source for The Hobbit and The Lord of the Rings (with Tolkien representing himself as a translator, rather than an epic novelist). It says that there was "a tradition" that after handing over the book, Sam crossed west over the sea himself, the last of the ring-bearers; and that some years later, after the deaths of Aragorn and Arwen, Legolas and Gimli also sailed together "over Sea".
Appendix C: "Family Trees" (Hobbits)
Gives hobbit genealogies – not only for Bilbo and Frodo's Baggins family, but also their relations the Tooks and Brandybucks, which connect them to Pippin and Merry.
Appendix D: "Calendars"
Describes some of the calendars used by the characters in the story, and explains that the Roman month names in the text are "translations" of the names in the hobbits' calendar. (Tolkien was a linguist, and provided Germanic-sounding names for the hobbit calendar by extrapolating names of German and Old English months forward to what he thought they might have become if all were still used in modern English, as Yule and Easter are.)
Appendix E: "Writing and Spelling"
Describes dwarves' runes and the elvish runes use by the other peoples of Middle-earth; the names of the runes and letters incidentally give a bit of information about dwarvish and elvish languages.
Appendix F: "Languages and Peoples of the Third Age" and "On Translation"
Presented as two sections. In addition to outlines of the various languages in current use during the narrative, and mentioned or seen in the story, it discusses hobbits' names at length. It sorts out names which Tolkien affected to have translated into English, and names which said he had left in original form (since they had no meaning in hobbits' everyday language).
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