Earth

Earth, also known as Terra, is the third planet of the Sol system and the biggest of its four inner bodies. The planet formed circa 4.5 years ago. Being located within its star's habitable zone, Earth managed to develop a thriving biosphere, where life evolved to the point where sapient beings appeared and assumed dominance over the planet.

For roughly 200,000 years, humanity dominated Earth's biosphere, with the 20 and 21 centuries seeing an exponential increase in human technological development, such as early interplanetary space travel, ladings on Luna, and creation of thermonuclear weapons. Humanity would enter a period of extreme international tensions which would eventually culminate into two global wars, with the second claiming roughly 60-80 million lives worldwide.

Throughout the 21 century, humanity largely prospered, though conflicts were not rendered extinct. Scientific research was focused on the development of efficient interplanetary travel. However, this age of peace would soon come to an end when an extrasolar species with capabilities of interstellar travel invades the planet and ultimately forces humanity into capitulation, exterminating the species from the planet's surface. The same alien species would go ahead and resurrect part of the human species after four centuries of planetary occupation.