The Land of Oz is the most attractive and delightful fairyland in all the world.
Oz is roughly rectangular in shape and divided along the diagonals into four countries: Munchkin Country in the East, Quadling Country in the South, Winkie Country in the West, and Gillikin Country in the North. These surround its capital, the Emerald City, in the center. The land is surrounded on all four sides by the Deadly Desert, which helps to protect it from discovery and invasion. Oz is the largest country on the continent of Nonestica.
At least some of Oz's infrastructure is made of yellow brick. The general style of architecture varies by country.
The history of the Land of Oz is cloudy, since the various Royal Historians have given conflicting accounts of past events.
The Fairy Lurline enchanted the Land of Oz so that it became a fairy country, and left one of her fairies to oversee it. During the reign of Ozma's grandfather, four wicked witches banded together to depose the king and rule the four quadrants of the land themselves. Mombi captured the king and kept him prisoner, but was later conquered by the Good Witch of the North. The Wicked Witch of the South was conquered by Glinda.
When O.Z. Diggs landed his hot-air balloon in the center of the land, he was thought to be a Wizard and the proper ruler of Oz, due to the initials emblazoned on his balloon. He built the Emerald City and reunited the four kingdoms, although he lived in fear of the four witches. (The Wonderful Wizard of Oz, Dorothy and the Wizard in Oz)
Dorothy Gale was brought to the Land of Oz by a cyclone, killing the Wicked Witch of the East. She also later killed the Wicked Witch of the West and revealed the Wizard as a humbug. The Scarecrow was crowned as the next King of Oz. (The Wonderful Wizard of Oz)
When General Jinjur and her Army of Revolt conquered the Emerald City, Glinda decided not to help the Scarecrow regain the throne. Instead she began a search for Ozma, the rightful ruler. She discovered some collusion between the Wizard and Mombi, and finally restored Ozma to her throne. (The Marvelous Land of Oz)
Ozma's inexperience in foreign affairs made an enemy of the Nome King and he later unsuccessfully attempted to invade Oz, after which Glinda erected a protective barrier of invisibility around the entire country. (Ozma of Oz, The Emerald City of Oz)
Population: Oz is inhabited by more than half a million people, although many of them are not made of flesh and blood. The Royal Historians claim that all of them are happy and prosperous. No disease is known in the land, and no one dies unless they meet with an accident which prevents them from living.
Government: Oz is an absolute monarchy, its ruler named Oz or Ozma. This rule is incompletely enforced, as many parts of Oz have never heard of the reigning Princess Ozma. The Emperor of the Winkies, the Monarch of the Munchkins, the King of the Quadlings, and the Sovereign of the Gillikins are all vassals of the Ruler of the Emerald City.
Economy: Although money has been used in the past, since the reign of Ozma began it is not a monetary economy; magic is a source of much of its production. There are no rich or poor people, and greed is unknown. Everyone is willing to share what he has in order to make his neighbor happy. (See: Money in Oz)
Everyone works half the time and plays half the time, and the people enjoy the work as much as the play. There are no overseers, and each is proud to do his best for his friends and neighbors.
Since the Land of Oz is cut off from other countries by the Deadly Desert, it produces all of its own food. Most of its produce is the same as the rest of the world, but there are some foods which are known only in the land of Oz, such as lacasa nectar and tamornas. Also, in many parts of Oz other commodities such as books and guns grow on bushes.
Legal System: The people of Oz are generally so well behaved that there is not a single lawyer among them. Eureka the kitten is one of the few defendants who have ever been put on trial. She was judged by a jury of nine (consisting of both people and animals) and was defended by the Tin Woodman.
Flag: The Royal flag is divided into four quarters colored sky-blue, pink, lavender, and white. In the center is an emerald green star. The colors represent the four countries of Oz, and the star the Emerald City. (See: Flags of Oz)
National Anthem: The national air is "The Oz Spangled Banner" and there are many other popular tunes.
The people of Oz enjoy festivities and music. Performing groups like the Imperial Cornet Band, the Royal Court Band, the Emerald City Cornet Band, and the Tin Band play at many special occasions. (Dorothy and the Wizard in Oz, The Road to Oz)
Each of the countries of Oz has its own characteristic and dominant color. In the Munchkin Country that color is blue, in the Winkie Country, yellow; in the Gillikin Country it is purple, and in the Quadling Country, red. The area surrounding the Emerald City is dominated by green. Yet misunderstandings arise on the extent of this color domination. A careful reading of the works of the Royal Historians reveals the true facts.
An obvious point is that the Yellow Brick Road that winds through the Munchkin Country is yellow, not blue. When Ozma's party returns to Oz from Ev, after their first defeat of the Nome King, they land in the Munchkin region, and see its "green slopes and wooded hills" before them as they cross the Deadly Desert. (Ozma of Oz)
When Tip builds Jack Pumpkinhead in the Gillikin Country, he uses an orange pumpkin for the head, and dresses the stick man in a red shirt and pink vest, which are readily at hand. (The Marvelous Land of Oz)
When the Shaggy Man dresses himself in splendor in the Emerald City, he chooses a rose-colored velvet suit, with cream-colored vest and stockings. The furniture around him is done in cloth-of-gold with scarlet embroidery. (The Road to Oz)
Other examples of color variety in Oz can be given, to show that the color scheme of Oz is far from uniform or absolute, despite the exaggerated claims sometimes made. (There seems to be something about Oz that leads people to hyperbolize and exaggerate on a range of subjects, including death and aging.)
The Sci-Fi Channel miniseries Tin Man takes place in the Outer Zone, which is a futuristic version of the Land of Oz.