Emil Johansson is a Swedish chemical-engineering student who moonlights as a genealogist—of men, elves, hobbits, and dwarfs. Creator of the Lord of the Rings Project, Johansson is on a quest to track every character from Tolkien’s fictional world. He started by creating a massive family tree, and from there he crafted an interactive map of Middle-earth and a timeline of events in Tolkien’s stories. He has even performed statistical analyses on the characters’ race, lifespan, and gender.
After laying out the tree, Johansson wanted to see how the number of characters changed over time—something he could do because of Tolkien’s remarkably detailed world. For Wired, Johansson plotted the population of beings for whom Tolkien provided birth and death information. (Elves, as everybody knows, never die.)
And then here’s a Delorean TARDIS, just because: