The sales world seems to be in a state of constant change, thanks to the emergence of new technologies.

To explore the most pivotal inventions that have revolutionized sales, Lattice Engines created the following infographic. It starts with Johannes Gutenberg's invention of the printing press (cuneiform and papyrus didn't make the cut) and brings us up to today.

Among the highlights:

1870s: Alexander Graham Bell invents the telephone. This invention greatly diminishes the world of door-to-door sales.

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ABOUT THE AUTHOR
image of Verónica Jarski

Veronica Jarski is the Opinions editor and a senior writer at MarketingProfs. She can be reached at veronicaj@marketingprofs.com.

Twitter: @Veronica_Jarski