Wikijunior:How Things Work/Timeline
The technology of this book spreads over a huge period of time. Here is a timeline to order the inventions.
PrehistoryEdit
Bronze/Iron AgeEdit
- 3350 BC - Wheel
- 3000 BC - Ice Skates
- 2400 BC - Pulley
- 2000 BC - Lever
- 700 BC - Flush Toilet
Middle AgesEdit
- 1232 - Rocket
Industrial RevolutionEdit
- 1790 - Sewing machine
- 1801 - Light Bulb
Atomic AgeEdit
- 1945 - Nuclear Bomb
- 1952 - Laser
Post-Modern AgeEdit
- 1973 - Mobile Phone