time line By p.asurmendi Period: 250,000 BCE to 10,000 BCE Paleolhitic 200,000 BCE discovery of fire Period: 10,000 BCE to 3500 BCE Neolitic 4000 BCE discovery of writting Period: 3500 BCE to 700 BCE Age of metals 700 BCE paper Period: 700 BCE to 476 Ancient history Period: 476 to 1453 Midle age 1400 discovery of clocks Period: 1453 to 1789 Modern age 1712 steam machine . 1712 pottery Period: 1789 to 1945 Comtemporanean Age 1800 electric batery 1879 light bulb 1885 automobile 1896 radio 1936 computer Period: 1945 to 2022 Actual world 1973 internet