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World history is commonly divided into five major eras: . This timeline highlights the critical milestones from the dawn of civilization to the present day. 1. Prehistoric Era (2.5 million years ago – 600 BCE)

China is united for the first time under Shi Huangdi . HISTORY TIMELINE : WORLD HISTORY TIMELINE FROM ...

Early humans develop stone tools and eventually discover agriculture during the Neolithic Revolution . World history is commonly divided into five major eras:

Widespread use of iron tools and the formation of larger planned cities. 2. Classical Era (600 BCE – 476 CE) Prehistoric Era (2

The Roman Empire unifies vast territories until the fall of the Western Roman Empire. 3. The Middle Ages (476 – 1450 CE) Historical Eras: List of Major Time Periods in History

Rise of the first major civilizations, including Mesopotamia and Ancient Egypt .

A period defined by the growth of powerful empires and foundational shifts in philosophy, law, and democracy. Democracy is instituted in Athens .