The History Of The Earth -

4. The Rise of Mammals and Humans (66 Million Years Ago – Present)

Life exploded in complexity during the . Creatures moved from the sea to the land, leading to the age of lush forests and massive insects. This era saw the rise and fall of the Supercontinent Pangea and the reign of the Dinosaurs . For 165 million years, these giants dominated the planet until a massive asteroid struck the Yucatan Peninsula, triggering a mass extinction. The History of the Earth

The story of Earth is a 4.5-billion-year epic that began in a chaotic cloud of stardust and evolved into the vibrant, living world we know today. 1. The Fiery Beginning (4.5 Billion Years Ago) This era saw the rise and fall of

As the planet cooled, a solid crust formed. Steam from volcanic eruptions and ice-carrying comets condensed into the first . In these chemical-rich waters, the miracle happened: the first microscopic life appeared. Eventually, organisms called cyanobacteria evolved photosynthesis, pumping oxygen into the atmosphere for the first time—an event known as the Great Oxidation Event . 3. The Age of Complexity (541 – 66 Million Years Ago) In these chemical-rich waters

2. The First Breath and Water (4.0 – 2.5 Billion Years Ago)