Multiple choice general knowledge

Which is the world's First Patented product?

  1. Subliminal Glasses

  2. Beerbrella

  3. Light Bulb Changer

  4. Epsom Salt
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Epsom Salt (magnesium sulfate) was patented in 1698, making it one of the earliest patented products in history. The patent was granted to Nehemiah Grew, representing an early example of formal intellectual property protection. The other options appear to be either fictional products or much more recent inventions that could not be the 'world's first' patented item.

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