Which advertising technique did Bell Telephone Company use in 1876 to convince a skeptical public of the telephone's practical value, transforming it from a curiosity to a necessity?

The world's greatest inventions don't always sell themselves! Behind many groundbreaking discoveries are fascinating marketing campaigns that helped transform innovations into household names. This trivia question explores how one revolutionary invention overcame public skepticism through clever advertising techniques. Test your knowledge about the intersection of technological breakthroughs and the marketing strategies that helped them change the world!

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Public demonstrations at the Centennial Exhibition where Alexander Graham Bell famously said, 'Mr. Watson, come here, I want to see you'
Celebrity endorsements from Thomas Edison and other famous inventors who claimed the telephone was superior to telegraph communication
Print advertisements showing how the telephone could prevent disasters by enabling immediate emergency communication
Door-to-door salespeople installing free trial telephones in businesses to demonstrate cost savings compared to messenger services