Celsius was a Swedish astronomer who published observations of the aurora borealis and supervised the building of an observatory at Uppsala, Sweden, where he pioneered the measurement of the brightness of stars. Today, however, he is better known for an invention that has been adopted by almost the entire world—the centigrade, or Celsius, thermometer. Originally, his temperature scale had 0 as its boiling point and 100 as its freezing point. Who reversed the numbers after Celsius died? Discuss
Source: The Free Dictionary