Multiple choice general knowledge history

He was the first person to patent a traffic signal. Who is that?

  1. John Froehlich

  2. John S. Thurman

  3. Garrett Augustus Morgan

  4. Evangelista Torricelli
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Garrett Augustus Morgan, an African American inventor, patented the first traffic signal in 1923. His invention featured a T-shaped pole with three positions: Stop, Go, and a warning direction that allowed traffic to clear before the next signal. John Froehlich invented the tractor, John S. Thurman invented the vacuum cleaner, and Evangelista Torricelli invented the barometer.

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