Marconi receives radio signal over Atlantic 1901  
  Wright brothers fly first motorized plane 1903
Ford installs first moving assembly line 1913  
  Electric consumer appliances proliferate 1920
KDKA begins to broadcast 1920  
  Television is developed 1926
Nylon is invented 1935  
  ENIAC is built 1945
Transistor is invented 1947  
  Apollo astronauts land on the Moon 1969
First commercial microprocessor is introduced 1971  
  Personal computer industry is launched 1975
The Internet gives rise to the World Wide Web 1992