People learn how to domesticate animals and cultivate crops. Stone tools are the most common form of tools used.
People settled in one place and began to cultivate crops and raise livestock.
Bronze tools are more commonly used than stone tools.
Iron tools are more commonly used than bronze or stone tools.
Columbus finds a route that opens contact between Europe and the Americas. This begins the Columbian Exchange the movement of animals, plants, culture, peoples, technology religion and ideas between the Americas and Europe and Africa.
The British Empire evolved into the largest empire the world has ever seen. After World War I it was renamed The "Commonwealth of Nations".
Wooden frames are used to mass produce mud bricks.
Ancient Mesopotamians establish the city of Ur along the Euphrates River.
Sumerians form the first city-states
Around 3100 BCE Sumerians begin using written language called cuneiform. The invention of writing begins the historical period. Events that occur before writing are considered prehistoric.
Akkadians create the world's first empire.
King Hammurabi creates a code of laws to unify and protect citizens of Babylon.
Ramses II signs world's first peace treaty with Hittites.
Jesus and his teaching lay the foundation of Christianity.
Muhammad's teachings become the foundation of Islam.
Siddhartha Gautama becomes the first Buddha and establishes Buddhism.
Western Roman Empire ends with the fall of Rome.
Eastern Roman Empire, often called Byzantine Empire, begins when Constantine moves the capital of Rome to Byzantium (later renamed Constantinople). It ends with the fall of Constantinople.
The Declaration of Independence announces to the world that the former colonies of Britain are now free and independent.