Finals years
Sumerian writing system used pictographs to represent words
3000 BC
Beginning of Egyptian hieroglyphic writing
2900 BC
Tortoise shell and oracle bone writing were used
1300 BC
Papyrus roll was used
500 BC
Chinese small seal writing was developed
220 BC
Book (parchment codex)
100 AD
Woodblock printing and paper was invented by the Chinese
105 AD
heat energy
stone age
Coal
1000 BC
water energy/hydropower
400 BC
Windmills
1300
natural gas
1820
electric generator
1830
commercial oil
1850
first solar powered system
1860
geothermal energy
1892
first nuclear fission reactor
1942
utilization of coal energy
19th and 20th century