The Imperial Dominion of Arithei is a gargantuan, socially progressive nation, ruled by Lord Lanair with a fair hand, and notable for its pith helmet sales, national health service, and free-roaming dinosaurs. The hard-nosed, hard-working, democratic, cheerful population of 49.347 billion Arithites hold their civil and political rights very dear, although the wealthy and those in business tend to be viewed with suspicion.

The relatively small, liberal, outspoken government is primarily concerned with Education, although Industry, Environment, and Administration are also considered important, while Spirituality and Social Policy are ignored. It meets to discuss matters of state in the capital city of Alqualondë. The average income tax rate is 86.0%, and even higher for the wealthy.

The frighteningly efficient Aritheian economy, worth an astonishing 21,831 trillion Drachmas a year, is led by the Information Technology industry, with major contributions from Book Publishing, Tourism, and Retail. Average income is an amazing 442,417 Drachmas, and evenly distributed, with the richest citizens earning only 2.4 times as much as the poorest.

Men avoid even so much as looking at female colleagues, stone wrist watches that weigh 20lb are the latest trend, rioting during the nation's hosting of ORDER caused one million Drachmas of property damage, and increasing numbers of children in Arithei have different eye and hair color to their supposed fathers. Crime is totally unknown. Arithei's national animal is the Lynx, which is also the nation's favorite main course.

Arithei is ranked 1,937^th in the world and 12^th in NationStates for Nicest Citizens, with 71.4 average smiles per day.