JEB
Legend
With the recent declaration that only 5E books are canon, it occurred to me - they've actually talked about older settings in 5E books! So taking them at their word, I thought I'd assemble together what they have (in theory) established as canon for those settings in 5E thus far. I'll start with the core rules and add more as I feel like it, but feel free to add more sources yourselves before I get to them (and add anything I missed)...
PLAYER'S HANDBOOK
Greyhawk
Dragonlance
Planescape
Blackmoor, Birthright, Dark Sun, Mystara
MONSTER MANUAL
Greyhawk
Dragonlance
Planescape
DUNGEON MASTER'S GUIDE
Greyhawk
Dragonlance
Mystara
Nentir Vale
Dark Sun
Planescape
Spelljammer
Birthright
PLAYER'S HANDBOOK
Greyhawk
- Gray elves and valley elves are high elves
- Wild elves (grugach) and Greyhawk's wood elves are wood elves
- Hairfeet and tallfellows are lightfoot halflings
- The druids' Old Faith is described under the Druid entry
- Many monk monasteries are dedicated to Xan Yae or Zuoken
- The Scarlet Brotherhood are evil monks that believe in Suel human superiority
- Part of the Greyhawk pantheon (not including Xan Yae or Zuoken) is described in Appendix B
Dragonlance
- Neidar and Klar dwarves are hill dwarves
- Hylar and Daewar dwarves are mountain dwarves
- Silvanesti elves are high elves
- Kagonesti elves are wood elves
- Draconians are evil dragonborn created from the corrupt eggs of metallic dragons by followers of Takhisis; they fought for Takhisis in the War of the Lance; each corresponds to a metallic dragon color (aurak = gold, baaz = brass, bozak = bronze, kapak = copper, sivak = silver); they have "unique magical abilities" in place of breath weapons
- Tinker gnomes are rock gnomes
- Most monks are dedicated to Majere
- Tika Waylan's background is described throughout Chapter 4 (to include mentions of Solace, the Inn of the Last Home, and dragonarmies)
- Part of the Dragonlance pantheon is described in Appendix B (broken into gods of good, neutrality, and evil)
Planescape
- Sigil is described in Appendix C
- Gate-towns are described generally in Appendix C
Blackmoor, Birthright, Dark Sun, Mystara
- Mentioned only in Appendix C
MONSTER MANUAL
Greyhawk
- Nightfang Spire, Gulthias, and the Gulthias tree are mentioned under Blights (but not explicitly tied to Greyhawk)
- Acererak and the Tomb of Horrors are described under Demilich (but not explicitly tied to Greyhawk, and Acererak later appeared in Tomb of Annihilation)
- The Demonomicon of Iggwilv is mentioned under Demons and again under Oozes (but not explicitly tied to Greyhawk, and Iggwilv - as Tasha - later featured in Tasha's Cauldron of Everything)
- Hommlet and the Temple of Elemental Evil mentioned in a sidebar next to the Marilith (but not explicitly tied to Greyhawk)
- Slaver lord Stalman Klim is quoted in the sidebar next to Goblins (but not explicitly tied to Greyhawk)
- Mordenkainen describes an iron golem in Maure Castle in the sidebar next to Golems (but not explicitly tied to Greyhawk)
- The gynosphinx of White Plume Mountain is mentioned in the sidebar next to Sphinxes (but not explicitly tied to Greyhawk)
Dragonlance
- Lord Soth's origin is described under Death Knight (but not explicitly tied to Dragonlance)
- A sidebar under Green Dragon by the Silvanesti, Pelios of Ergoth, describes the green dragon Cyan Bloodbane (Silvanesti previously established to be in Dragonlance)
Planescape
- A sidebar next to the Marid describes the Parted Veil, a bookshop in Sigil, and its proprietor
- The Great Modron March is described under the Modron entry
- Shemeshka the Marauder of Sigil is quoted in the sidebar in the Yugoloths entry
DUNGEON MASTER'S GUIDE
Greyhawk
- Described as a setting that doesn't stray far from the "default assumptions" of D&D
- Heironeous and Hextor are described
- Kord, Pelor, Tharizdun, and Vecna, in the Dawn War pantheon, are described as originating from Greyhawk
- Wee Jas is said to be "akin" to the Dawn War pantheon's Raven Queen
- The Free City of Greyhawk is mentioned, and also described as an example of an oligarchy
- The Bandit Kingdoms are an example of a kleptocracy
- Highport and Suderham are examples of satraps, and the Slave Lords are also mentioned
- World is named Oerth, "renowned paladin" Murlynd is named
- The Mace of St. Cuthbert is described
- The Barrier Peaks are mentioned
- Elminster is said to have met a wizard from Oerth in Ed Greenwood's kitchen
- Oerth (a "sword and sorcery" world) is detailed specifically at the end of Chapter 2, to include Bigby, Mordenkainen, the Flanaess, and Iuz
- Wee Jas, Iuz, and Incabulos are associated with the Death domain
- Pyremius is associated with the Death domain (not explicitly tied to Greyhawk)
- Blackrazor, Wave, and Whelm of White Plume Mountain are all described (not explicitly tied to Greyhawk)
- Eye and Hand of Vecna is described, to include Vecna
- Sword of Kas described, to include Kas (same setting as Vecna implied)
Dragonlance
- Described as a setting that doesn't stray far from the "default assumptions" of D&D
- The dragonarmies and Dragon Highlords that serve under Takhisis are an example of a hierarchy
- Solamnia is an example of a militocracy
- Sturm Brightblade is described as an "honorable knight" (same setting as Takhisis implied)
- Described as an "epic fantasy" setting
- Elminster is said to have met a wizard from Krynn, the Dragonlance homeworld, in Ed Greenwood's kitchen
- Krynn is detailed specifically at the end of Chapter 2, to include Ansalon
- Chemosh and Morgion are associated with the Death domain
- Orb of Dragonkind described, to include Towers of High Sorcery; Takhisis is explicitly described as Tiamat's name on Krynn
Mystara
- Described as a setting that doesn't stray far from the "default assumptions" of D&D
- Mystara is detailed specifically at the end of Chapter 2, to include Immortals
Nentir Vale
- The Dawn War pantheon is presented as an example pantheon (but not explicitly tied to Nentir Vale)
- World Axis cosmology is described (but not explicitly tied to Nentir Vale)
Dark Sun
- Described as a setting that moves further away from the "baseline" of D&D
- The sorcerer-kings of Athas are an example of a magocracy
- Planet named as Athas, described as a world where arcane magic is hated and drains life from the world, and notes that most magic in Athas is held by evildoers
- Described as a "sword and sorcery" setting with heroic gladiators
- Athas is detailed specifically at the end of Chapter 2, to include water being valuable, the gods abandoning it, and metal being scarce
Planescape
- Described as a setting that moves further away from the "baseline" of D&D
- Sigil and the Infinite Staircase are mentioned as ways to travel the Outer Planes
- Gate-towns are named and Sigil is detailed, to include the Lady of Pain
- Razorvine is described among wilderness hazards
Spelljammer
- Described as another setting that moves further away from the "baseline" of D&D
Birthright
- Aebrynis is detailed specifically at the end of Chapter 2, to include scions with divine bloodlines, Cerilia, and abominations born from an evil god
- Elemental Evil Player's Companion; Volo's Guide to Monsters
- Xanathar's Guide to Everything; Mordenkainen's Tome of Foes
- Tasha's Cauldron of Everything
- Princes of the Apocalypse
- Tales from the Yawning Portal
- Tomb of Annihilation, Ghosts of Saltmarsh
- Baldur's Gate: Descent Into Avernus, Icewind Dale: Rime of the Frostmaiden, Candlekeep Mysteries
- Explorer's Guide to Wildemount, Van Richten's Guide to Ravenloft
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