What major events took place during the 4 eras on Earth?

Earth's history is divided into four major eras: the Precambrian, Paleozoic, Mesozoic, and Cenozoic. During the Precambrian, life began with simple microorganisms, leading to the emergence of more complex organisms. The Paleozoic era saw the development of diverse marine life, the colonization of land by plants and animals, and the formation of supercontinents. The Mesozoic era is known for the age of dinosaurs and the rise of mammals, while the Cenozoic era, often referred to as the Age of Mammals, has witnessed the evolution of modern species and significant climatic changes.