The Etti have long had an isolationist culture. Over 20,000 years ago, the ancestors of the modern Etti united in their opposition to the political and military policies of the Galactic Republic. This group of dissidents pooled their resources and purchased several colony ships. Declaring the Republic to be "tyrannical and to oppressive," they left the Core Worlds and followed several scouts to a new world far removed from the reach of Coruscant.

This new world, Etti, was mild and comfortable. Advancing terraforming and bioengineering technologies (stolen or purchased from the Republic) allowed them to develop a civilization based on aesthetic pleasures and high culture. The Etti shunned contact with the outside galaxy and their culture stagnated and became decadent.

Eventually, the rest of the galaxy "caught up" with the isolationist people; the newly founded Corporate Sector Authority offered the Etti control of an entire system if they would only develop and maintain it on behalf of the CSA (and, of course, share the profits). The Authority asked the Etti to terraform portions of one of the planets in the system to serve as lush estates for the Authority's ruling executives and to develop elaborate entertainment complexes to cater to the needs of the wealthy visitors. The Etti leaders, sensing the opportunity for great profit, accepted the offer and relocated, bringing most of the Etti population with them.

The Etti were given relatively free reign to govern the planet (within Corporate Sector directives). They terraformed the land, making virtually every hectare burst with rich foliage. Entertainment complexes and starports were turned over to the Corporate Sector (since they tended to attract an unsavory element), but the rest of the planet remained in the hands of the Etti, and the Authority executives and socialites who purchased or rented estates for their personal recreation.

As the Corporate Sector developed and grew, Etti IV's importance increased; each year, more traffic came through its starports and more wealthy citizens were attracted by the planet's beauty. The Etti have made a profitable business of parceling off and selling plots of prime property on their new planet, many as fine estates for CSA officials, replete with villas, gardens and lakes. They are careful not to overdevelop the planet, and they pride themselves on their land and resource management abilities.

The Etti also run several pleasure complexes for the CSA as they believe they - more than anyone - can best cater to the wealthy. Their entertainment complexes are works of art in themselves - architectural enclaves shielded from the harsh reality of the Corporate Sector worlds. These complexes include hotels, casinos, pleasure halls, music auditoriums, holo-centers, and fine restaurants, all connected by gardens, seemingly natural waterways, and grand tubeway bridges with greenery hanging from the planters everywhere. The entertainment complex at Etti IV's main starport, called the Dream Emporium, is their most luxurious and lucrative establishment, drawing on the wealth of the innumerable CSA officials living on the planet and traders traveling through the region.