Earth Prime


 * This article refers to the version of Earth known as Earth Prime (standard Earth), for other uses see Earth (disambiguation) .

Earth Prime is the "primary" version of the planet Earth by which many comparisons are made. The reason that this particular version of Earth is considered the "primary" version isn't entirely clear, however many speculate that the earliest chronicler of the Multiverse from The World was a former inhabitant of Earth Prime. Other versions of Earth are often given numerical designations as they are entered into the Monde Database. Earth Prime, as with most variations of Earth, is the third planet from Sol, the local sun (commonly simply known as Sun by the people of Earth Prime). The only sentient species on the planet are known as humans and are one of the most commonly seen of all sentient species on The World.

Description
Earth Prime is the third planet from Sol, the single star of the system. It is a terrestrial planet, thusly it has a core, mantale and a crust. Like other terrestrial planets, it is mostly made up of rock. It is home to millions of species of flora and fauna, including the sentient species called human. Approximately seventy-one percent of the Earth is covered in water, giving the planet several massive oceans. The planet may be nicknamed by some as the "Blue Planet" due to its colour from space. Plate tectonics occur on the Earth, causing the continents to shift across the Earth's surface. At one time in Earth's history the continents would have been one supercontinent until plate tectonics caused the current layout of the land.

Continents
The current continents of Earth Prime are Eurasia, Africa, South America, North America Antarctica and Australia. North and South America are actually connected via a small mass of land, meaning some may consider this to be one landmass. However Africa is likewise connected to Eurasia, though only by a small landmass. Many will divide the Eurasian continent into two halves - Europe and Asia. However this divide is a historical and cultural division rather than an actual physical divide, making it false to dub them separate continents. The land of Earth Prime is divided between many human civilisations to form various countries with boundaries that have varied greatly throughout human history. All continents are inhabited by humans except for Antarctica, which is covered by ice.

The Moon
Earth Prime has just one, single moon. The people of Earth Prime often refer to this moon simply as the Moon, however it is also called Luna. Luna is tidally locked to the Earth, which means one side of the moon constantly faces the Earth. This gives a permenantly light and a permenantly dark set of sides to Luna. By coincidence the Moon's distance from the Earth makes it almost exactly the same visual size as the Sun when standing upon the Earth. This relation in size causes the event known as a solar eclipse on Earth.

Weather and Seasons
The weather of the planet varies immensely region to region and season to season. The north and south poles are incredibly cold whilst the area around the equator of the planet are generally hot. Seasons are a very unique trait to the planet Earth, and its variants, as they are caused by the axial tilt of the planet. This tilt also causes the sunlight that reaches the sun to differ during various times of the year.

History
When Earth Prime was forming another terrestrial body smashed into the Earth, forming the Moon and creating the Earth's axial tilt (leading to the planet's seasons in the future). It wasn't until the oxygen levels of the planet eventually increased did complex multi-cellular life emerge (many billions of years after the Earth's formation). The continents of Earth went through various stages until they eventually came together to form one supercontinent, often called Pangaea, and saw the arrival of complex lifeforms. This includes plantlife that covered the areas that would eventually become the continents of Europe and South America, by which point the plantlife had become fossilised a coal. The supercontinent would eventually drift apart again and eventually drift into the continents seen during the modern era of Earth Prime.

Age of the Dinosaurs
Long before the evolution of humans the planet was largely dominated by reptiles commonly known as dinosaurs. During this time development of mammals and birds also arose but they were in the minority compared to the vast numbers of reptiles. The largest of all dinosaurs were herbivores, eating the planlife of the period. Some of these plant-eaters evolved protective qualities, such as armour and body weapons, to defend themselves from carnivores. The carnivorous dinosaurs were commonly bipedal. From the smallest of these bipeds would eventually evolve birds. Even during the period many of these bipedal dinosaurs, such as velociraptor or even the larger utahraptor, had feathers. Despite their size some of the largest dinoaurs, such as the stegosaur, had brains the size of walnuts. The extinction of the dinosaurs was caused by one or more asteroids striking the Earth and upsetting the eco-system of the planet enough to cause mass extinctions. However from this chaos came the gradual development of other species, especially birds, mammals and flowering plants.

Age of Man
Humans evolved from apes and various sub-species of humans existed at the same time. Eventually, however, it was the species named homo sapiens that succeeded where others failed and became the sole species of human on the planet. Human civilisation developed slowly in its early stages and after Earth Prime's last ice age the species eventually began rapid development. Its earliest recognised civilisations were Sumeria and then Egypt. Amazing monuments were built by the Egyptians called The Pyramids and a few hundred years, in a completely unrelated civilisation, Stonehenge was built. The earliest buildings were built in Europe and were largely for purposes of burial.