How significant is the invention of the polygraph?
The polygraph is considered officially one of the greatest inventions of all time. For example, the polygraph (lie detector), invented by John A. Larson of the U.S. in 1921, is included in the Encyclopaedia Britannica Almanac 2003’s list of 325 greatest inventions. Originally published in 1768, the Encyclopaedia Britannica is the oldest continuously published English-language encyclopedia and one of the world’s most trusted sources of information.