The United States of Mesozoic is a colossal, socially progressive nation, ruled by President Enzo Semedo with a fair hand, and remarkable for its ubiquitous missile silos, devotion to social welfare, and stringent health and safety legislation. The compassionate, democratic, devout population of 3.246 billion Mesozoicans love a good election, and the government gives them plenty of them. Universities tend to be full of students debating the merits of various civil and political rights, while businesses are tightly regulated and the wealthy viewed with suspicion.

The medium-sized, socially-minded government juggles the competing demands of Education, Administration, and Industry. It meets to discuss matters of state in the capital city of Sherington. The average income tax rate is 75.1%, and even higher for the wealthy.

The frighteningly efficient Mesozoican economy, worth 593 trillion Mesozoican dollars a year, is broadly diversified and led by the Information Technology industry, with major contributions from Tourism, Book Publishing, and Retail. State-owned companies are common. Average income is an impressive 182,782 Mesozoican dollars, and distributed extremely evenly, with little difference between the richest and poorest citizens.

Viewers get headaches from trying to read the screen full of small print warnings that precede most TV shows, scientists pester asteroids with probes until they go away, where there's a will there is usually a password manager, and a suspicious number of John Smiths are known to donate to Mesozoican politicians. Crime, especially youth-related, is totally unknown, thanks to a capable police force and progressive social policies in education and welfare. Mesozoic's national animal is the white-tailed eagle, which soars majestically through the nation's famously clear skies.

Mesozoic is ranked 14,468^th in the world and 3^rd in North America for Highest Average Incomes, with 182,782.91 Standard Monetary Units.