World's Greatest Inventions (ever)

Another gem from my old Palm Pilots - a list that generated a lot of debate (and ridicule) at the time I recall! I'll try to put it in order sometime soon, and perhaps try to justify these wild claims.

• Fire
• Wheel
• Weaving
• Metalwork
• Plough
• Writing (Sumeria, 3000BC)
• Printing press (Gutenburg 1458) - note: da Vinci refused to have his manuscripts typeset as he thought printing was a fad.
• Water frame (Arkwright) 1770 vs Spinning Jenny (Hargreaves) 1767
• Pulp paper (1798)
• Gatling Gun (1860s)
• Telecommunications (AG Bell, 1876)
• Engine (Niklaus Otto, 1877)
• Refrigeration (?)
• Plane (Wrights, 1903)
• Thermal Oil refining (W. Burton, 1913)
• Liquid fuel rocket (Goddard, 1923)
• Atomic bomb (1945)
• Computer (1946)
• Satellite (Clarke 1948, launched '58)
• The Pill (1961)
• The internet
• Theory of 4 forces - weak nuclear, strong nuclear, gravity, electromagnetic.