The Whirlpool Galaxy, or Messier 51a, is an interacting grand design spiral galaxy that lies within the constellation Canes Venatici, and was the first galaxy to be classified as a spiral galaxy. The Galaxy has of until recently been interacting with the dwarf galaxy NGC 5195, which make up a region of the Trans-Galactic Empire of Rexlor known as "the old worlds", as it is the region where the nation originated from.
The Whirlpool Galaxy formed about 13.2 billion years ago, and was for a time home to many sentient species, capable of space flight or not. Some of these species still exist, but most were wiped out by the Rexlorians, a race of humanoid creatures originating from the Chronir System. This species now completely controls the galaxy, which it has since 7.8 Billion BCE. For Billions of years, the Galaxy was peaceful, with only a few known revolts. In 3.8 Billion BCE, the Rexlorians even controlled Sol, and by extension, Earth. However, this did not last for long, as something caused them to leave after a few hundred years, however, they did plan to return in the hopes of destroying the First Civilization. However, this was not to be, as they did not return until long after the First Civilization fell. In 8071 CE, they returned with fire. However, they did not find the First Civilization, and instead they found the Confederacy of Humanity in it's place. For nearly a thousand years, they waged war with the Confederacy, who fought with courage. Eventually, however, they attacked Sol, and held Earth for a month before they were fought off. Eventually, they made peace, and actually became allies. After the war, the two nations would go on to fight alongside each other in many wars, including the First Intergalactic War.