The history of Earth is divided into four great eons, starting 4,540 mya with the formation of the planet. Each eon saw the most significant changes in Earth's composition, climate and life.

Jul 29, 2025 · The history of Earth is not just a record of rocks and organisms—it is a story of transformation, resilience, and wonder. From a fiery ball of molten rock to a cradle of …

Explore the complete timeline of Earth’s evolution - from formation and first life to modern climate change and future environmental shifts.

What caused the rise and extinction of different types of life on Earth? How do major geologic events, like volcanic eruptions or asteroid impacts, shape Earth's history?

Nov 20, 2023 · Dive into the most dramatic events in Earth’s 4.5-billion-year history, from its birth to the emergence of humanity. How did a hellscape of molten lava transform into a lush, …

Apr 16, 2025 · Here is the origin story of Earth—the only place we know life to exist. The Big Bang brought the universe into existence more than 13 billion years ago. But it wasn't until much …

Click on the dates to learn about some of the major events in Earth's history—from present to 4.8 billion years ago.

Due to plate tectonics, Earth’s land is constantly shifting and changing over time. 250 million years ago, all of Earth’s landmass was united in a single supercontinent called Pangaea.

Jul 7, 2025 · Earth's history spans approximately 4.6 billion years, a vast timeline marked by continuous geological and biological transformation. This article explores the major eons and …

This timeline of Earth's history summarizes significant geological and biological events from the formation of the Earth to the arrival of modern humans. Times are listed in millions of years, or …