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3500 BCE
Invention of the wheel
Mesopotamia invented the potter's wheel. 300 years later, it was used for transportation with chariots. -
3500 BCE
First written language
A language known as Sumerian in southern Mesopotamia, was the first known language -
3300 BCE
Concrete
Burned limestone made a hard protective surface, which built roads and bridges. This picture shown is the Roman Pantheon that was made by concrete. -
1000 BCE
Iron Age Begins
Iron became widely used and was used for making weapons and tools -
288 BCE
Archimedes was born
A mathematician, engineer, and inventor. He created many machines. Creating a screw for lifting up water from wells and pi were a few of his well known inventions. -
100 BCE
Paper
Paper was invented in China by Cai Lun. It helped to provide the expansion of literature and also to be much cheaper then bamboo or wood. -
3 BCE
Zero invented
Mayan used as a placeholder for their calendar system -
850
Gunpowder was invented
China accidentally invented the first type of gunpowder and it allowed the innovations of rockets and launchers. -
915
Windmill
The windmill was first known in Persia. They were first invented as horizontal windmills with vertical blades. -
1250
Mechanical Clock
Clocks were around, but this was the first mechanical one. Standard timekeeping device used on cathedrals. -
1268
Eyeglasses
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1300
Renaissance Era Begins
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1440
Printing Press
Johannes Gutenburg changed the evolution of society -
Apr 15, 1452
Leonardo Da Vinci was born
Key person in the Renaissance era. Created new ideas, discoveries, and amazing paintings. -
Feb 15, 1564
Galileo was born
Galileo was born in 1564. He was an Italian scientist. He improved the telescope also the compass. -
Microscope
The microscope was invented. They were able to see physical objects twenty to thirty times greater -
Galileo's compass
Galileo improved the compass and helped military make precise mathematics. Compass was a instrument to make calculations and geometrics.
