The April Fool's Fan of Imperio de Castilho is a massive, environmentally stunning nation, ruled by General Anhanguera with an even hand, and renowned for its sprawling nuclear power plants, pith helmet sales, and stringent health and safety legislation. The compassionate, hard-working, devout population of 3.386 billion Castilhians have some civil rights, but not too many, enjoy the freedom to spend their money however they like, to a point, and take part in free and open elections, although not too often.

The large, corrupt government juggles the competing demands of Defense, Law & Order, and Administration. It meets to discuss matters of state in the capital city of Guaricana. The average income tax rate is 86.2%.

The frighteningly efficient Castilhian economy, worth 532 trillion dollars a year, is led by the Arms Manufacturing industry, with significant contributions from Tourism, Information Technology, and Book Publishing. Average income is an impressive 157,352 dollars, and evenly distributed, with the richest citizens earning only 3.1 times as much as the poorest.

Class clowns are frequently listed among the most dangerous criminals in the nation, trails to natural wonders are littered with trash from reality film crews, the nation is currently revamping its entire education system, and sales of trenchcoats are on the rise. Crime, especially youth-related, is totally unknown, thanks to a very well-funded police force and progressive social policies in education and welfare. Imperio de Castilho's national animal is the fragata, which frolics freely in the nation's many lush forests, and its national religion is Christianity.

Imperio de Castilho is ranked 283,796^th in the world and 6,058^th in The North Pacific for Largest Gambling Industry, scoring -13.83 on the Kelly Criterion Productivity Index.