4.6 billion years ago, repeated collisions between planets gave birth to the earliest Earth.
Between 4 billion and 2.5 billion years ago, the earliest life forms emerged.
540 million years ago, the most mysterious event in Earth's history, the Cambrian Explosion, began. Life across the planet started evolving at "light speed."
245 million years ago, dinosaurs appeared and soon dominated the world. They flourished for 180 million years before ending in an unknown global catastrophe.
4 million years ago, Australopithecus, the earliest creature with human characteristics, appeared on the African continent.
200,000 years ago, the first Homo sapiens emerged in Earth's history. They began expanding from Africa and spreading across the globe.
December 2, 2016: The world was shaken! A virus outbreak dragged human civilization into hell and brought life across the planet into paradise.
The world had entered another age of biological explosion!
(P.S. Humanity's development is but a fleeting moment in Earth's history. How will this proud and arrogant species survive in this new age?)
