Earth (Earth-5875)

"Fight for her."

- - Bulletin poster

Earth, also known as Sol III, is the third planet in the Sol system, and one its four terrestrial worlds. It is the homeworld of humanity, capital of the Unified Earth Government, and headquarters of the UNSC and the Colonial Marshal Bureau. Populated by ten billion people, Earth was the most populated human world before the invasion of the Covenant, which severely reduced the numbers to a one billion in 2604.

Prehistory
It is believed that Earth formed about 4.6 billion years ago, while the first single-celled organisms of the planet originated about 3.9 billion years ago. It is believed that the ancestor of modern humans (Homo sapiens sapiens) evolved in Africa around 200,000 years ago.

Locations
"Earth. Man, what a shithole."

- - Ron Johner