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Around 3500 BC the first signs of bronze usage by the ancient Sumerians started to appear in the Tigris Euphrates valley in Western Asia. -
In 3000 BC the egyptians start using medicine -
Around 2780 BCE, King Djoser's architect, Imhotep, built the first pyramid by placing six mastabas, each smaller than the one beneath, in a stack to form a pyramid rising in steps -
The wheel was invented in the 2000 BC in Lower Mesopotamia, where the Sumerian people inserted rotating axles into solid discs of wood. -
The Shang Dynasty which ruled from about 1750BC to 1045BC was one of the earliest known Chinese -
The olmec appear (estimate year) they was the first tribu to appear in Mesoamerica and they do a big influence in mesoamerica -
Chavín society developed and changed over time. Between about 900 and 500 BCE, only several hundred people lived near the temple site -
Olmec create the stone head between 1000 BC to 400 BC that head is the most popular thing of them -
Around 500 BCE, the number of people living around the temple increased, and renovations and remodeling of the temple to allow for larger crowds were completed. -
The place was plane and Teotihuacan was the place that man die and become gods -
The invention of paper is a symbol of advanced science and technology in ancient China. -
It is believed to have been constructed about 200 AD. Found along the Avenue of the Dead, in between the Pyramid of the Moon and the Ciudadela, and in the shadow of the mountain Cerro Gordo, the pyramid is part of a large complex in the heart of the city. -
Toltec dominate what is now northern and central Mexico from around 950 AD until bround 1150, when internal, warfave, led to they diecline -
Toltec introduce the craft of working in metals to mesoamerica