Around 19,000 BBY climate shifts began to cause the huge glaciers of Kamino to melt. The Kaminoans were able to survive the great flood by using cloning to keep themselves sustained.
Through most of its history the location and even its existence was known to only a very few beings. It became known to the members of the Galactic Republic as late as 4,500 BBY.
In 32 BBY, Supreme Chancellor Palpatine, secretly the Sith Lord Darth Sidious, ordered the creation of an army of clone troopers with Jango Fett to be the clone trooper template. He agreed under the condition that he would get to have a son without the inhibitor chip and the age acceleration. Palpatine secretly made orders that the clones would have to abide by put into their bodies via chip, including the infamous Order 66. The clones grew at twice the rate as normal humans. The Kaminoans gave them flash training on weapons and tactics, but loyalty to the Republic and Chancellor Palpatine was stressed above all to the young troops.
By 32 BBY the clone troopers were trained and ready for battle. They were soon deployed to planets throughout the galaxy. In 22 BBY there was another major deployment of troopers that included Domino Squad and Bravo squad.
Kamino was the 5th planet in a system of 13 planets that were orbiting an aging star, also called Kamino, south of the Rishi Maze. The water world was located in the Wild Space region, beyond the Outer Rim. The planet itself had three moons orbiting it, including Korasa.
The planet had a molten core, a rocky mantle, and a silicate rock crust. Climate change had covered all the planet's continents with water except for a few mountain tops which became islands, though they were rained on almost non-stop. Its powerful bursts of lightning and storms could be seen through it's very relatively thick atmosphere.
Very little is known about the Kaminoans as they were secluded from the rest of the galaxy. They were only able to observe color in the ultraviolet spectrum, so what appeared to be white was actually colored with shades that the human eye was unable to see. Male Kaminoans had fin ridges on the top of their heads. Some Kaminoans rode on the back of creatures called Aiwhas, which were probably created using cloning technology.