Google has commemorated the 151st birth anniversary of Wilbur Lincoln Scoville who invented pepper heat scale. Wilbur Scoville, an American chemist born in Bridgeport Connecticut on January 22, 1865, is responsible for the “Scoville Organoleptic Test”, a scale of “hotness” that has been the definitive rating of how spicy a chilli is for more than 100 years.