The Ages of Humanity

1) The Prehistoric Era:
A time where there were no advanced Civilizations, only small groups of people. Despite primitive, they had access to fire, and were able to hunt real well. Life was simple for humans, for the simple humans who lived in this era. They would lay the groundwork for much more. 
2) The Ancient Era:
A time of more Advanced Civilizations will soon come to be. They would develop a Culture and Knowledge. The small groups of people disappeared in favor for huge Civilizations with Amazing Monuments. 
3) The Classical Era:
Great Expansion would occur in this era. Man continued to grow smarter. New ideas and questions began to arise. This would cause the Knowledge of Man to continue growing.
4) The Medieval Era:
With this era came more advanced architecture. Yet more conflict, because the Medieval Era had many conflicts and problems, but this would not stop the growth of Man.
5) The Renaissance Era:
Art, Knowledge, Architecture, and the Growth of Man would see a huge growth in The Renaissance. Important inventions such as the Printing Press were invented.
6) The Industrial Era:
Man became so smart that they started an Industrial Revolution, with Factories, mass Production, Trains, among many other things. This new technology would lead Man to create greater things in the future.
7) The Atomic Era:
Atomic Bombs had been invented and Man was now able to split the Atom. That's not the only highpoint of this Era, however, more ways of communication were invented, such as the Telephone, and the Radio.
8) The Information Era:
Now Man created the Computer, at first, the Computer is only a Tool, but throughout this era, it would grow into a being, much like humans. This Era also saw the growth of a new Invention, the Internet.
9) The Big Tech Era:
The Internet would change from a place were everyone can do whatever, to a heavily restricted place, restricted by Corporations. Now a few companies rained supreme over the Internet, they were called Big Tech.
To be Continued.
I know the descriptions aren't that detailed so if you want to change them around go ahead.