Facts and Statistics about Earth’s history
![geological-time-spiral-facts-stats](https://magnifyskill.com/wp-content/uploads/2020/02/geological-time-spiral-facts-stats-250x150.png)
How is Earth’s history divided up? Geological Timeline Scientists divide the last 590 million years of Earth’s history into three main eras: the Paleozoic (meaning “old life”) era, the Mesozoic (“middle life”) era, and the Cenozoic (“new life”) era. The eras are subdivided into periods, and some periods are…