A Few Facts About Discworld.
•It consists of (as the name suggests) a flat disc (complete with edge-of-the-world drop-off and consequent waterfall) resting on the backs of four huge turtles (Great T'phon, Tubul, Berilia, and Jerakeen) which are in turn standing on the back of an enormous turtle. Directions within the Discworld are not given as North, South, East and West, but rather as directions relating to the disc itself, ex: Hubward (towards the centre), Rimward (away from the centre) and to a lesser extent, turnwise and widdershins (relation to the direction of the disc's spin). It relies on magic.
Eight is a significant number on the Discworld. There are eight colors in the spectrum (the eighth being octarine, the "color of magic"), and eight days in a week (the eighth being Octeday). There are also, due to the peculiar astronomical arrangements, eight seasons (and 800 days) in a year, although most Discworlders consider four seasons make a year, whatever astronomers say. The discworld calendar has 13 months.