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Period: to
Pre-Industrial Age
Papyrus scrolls, cave writings/drawings, clay tablets, discovery of fire, paper from plants, weapons and tools, gestures, animal skin/leaves for clothing -
Period: to
Industrial Age
Printing press, newspaper, typewriter, telephone, projection, telegraph, punch cards, phonograph, machines, steam engine, train, sewing machine, musical instruments, books -
Period: to
Electronic Age
Cell phones, calculators, GPS, television, pagers, e-mails, voice mails, websites -
Period: to
Information Age
Smartphones, computers, laptops, tablets, laser printers, digital cameras, smart televisions, smart watch, wireless headphone, wireless speaker, software applications