Bronze Age, First: The last age of Firstworld. Known as the "Late Bronze Age" in Middleworld.
Bronze Age, Second: The current age, which began during the Renaissance.
Changeling: An elf raised in Middleworld or a human raised in Otherworld.
Cold Iron: A type of iron particularly detrimental to magical beings. Believed, by some, to be a variety of steel.
Cold Iron Age: The coming age that will mark the beginning of the end for Otherworld. Also known as the Second Iron Age.
Drogeo: The Otherworldy kingdom roughly synonymous with the island of Newfoundland.
Elf: The dominant native race of Otherworld, having a homonormative society.
Estotiland: The Otherworldly Kingdom roughly synonymous with Labrador and northern Quebec.
Firstworld: The world of the First Golden, Silver and Bronze ages, when there was no distinction between Otherworld and Middleworld. The world before science and history.
Goblin: A Liminal race that has been sunjugated in Otherworld and is reviled in Middleworld (to a point of near extinction). Goblins are typically responsible for swapping human and elf children to create Changelings.
Golden Age, First: Known as the "Early Bronze Age" in Middleworld.
Golden Age, Second: An age of prosperity and conquest. In Middleworld, spanning the Roman Republic and the following Empire until the fall of the Western Roman Empire.
Human: The dominant native race of Middleworld, having a heteronormative society.
Innocent: A human or elf child before the onset of puberty. Capable of crossing the Threshold.
Iron Age, First: The first age of both Otherworld and Middleworld. Marked by the emergence of Cold Iron. Lasted, in Middleworld, until the rise of the Roman Republic.
Iron Age, Second: see Cold Iron Age
Jogah League: An Otherworldly nation roughly synonymous with Upstate New York and southern Ontario.
Lastworld: The world that Middleworld will become during the Cold Iron Age when the Sundering finally destroys Otherworld.
Liminal: "Living on the edgle." A liminal thing is capable of operating in two-different states. The Treshold is liminal, as are Changelings, Goblins and Innocents.
Middleworld: The modern world in which we live. A world of science.
Norumbega: The Otherworldly kingdom roughly synonymous with New England and the Canadian Maritimes. Ruled by the Court of Pines. Currently at war with Saguenay.
Otherworld: The world of magic, which still exists parallel to Middleworld. The Sundering is slowly separating it from Middleworld, and will eventually destroy it.
Otherworlder: A native of Otherworld, including Changelings and Goblins (even though goblins are native to both worlds).
Saguenay: The Otherworldly kingdom roughly synonymous with southern Quebec. Ruled by the Court of Lilies. Currently at war with Norumbega.
Silver Age, First: Known as the "Middle Bronze Age" in Middleworld.
Silver Age, Second: Sometimes called the "Dark Ages" in Middleworld, spanning from the fall of the Western Roman Empire to the Renaissance.
Sundering: The division of Firstworld into Otherworld and Middleworld, that started during the First Bronze Age and has been predicted to end during the Cold Iron Age--completely destroying Otherworld.
Therian: A human, elf, or goblin with an animal soul. "Liminal" in that they are native to both worlds, but not necessarily capable of crossing the Threshold.
Threshold: The "barrier" between Otherworld and Middleworld. Only Changelings, Goblins and Innocents can cross the Threshold, moving from one world to the other.