Earth, juwel and centre of the United Federation of Planets. Over 9 billion intelligent beings permanently reside on the class M planet. Earth features some of the most important institutions of the Federation, such as the Federation Council, the Office of the President and Starfleet Command.
Earth is also home to humanity, often called the "mortar of the Federation". Humans serve in almost all functions and places of the Federation, being highly adaptive and diplomatic. All of this has to be considered being remarkable as it took humanity a little over 200 years to evolve from a commerce driven, warmongering species into one of the pillars of the greates power of the Alpha Quadrant.