Which invention's adoption was dramatically accelerated by Claude Hopkins' 1920s advertising campaign that transformed it from a rarely-used novelty to an essential daily habit for millions of Americans?

Many groundbreaking inventions needed brilliant marketing to achieve mainstream success. Behind some of history's most important discoveries lie advertising campaigns that changed how we perceive and adopt new technologies. This poll tests your knowledge about a pivotal moment when advertising transformed a scientific innovation from obscurity to household necessity.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Toothpaste (Pepsodent)
Vacuum cleaner (Hoover)
Instant camera (Polaroid)
Refrigerator (Frigidaire)