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25/12/1741 Anders Celsius introduces Centigrade temperature scale

The Celsius scale is a temperature scale used by all countries except the United States, the Bahamas, Belize, the Cayman Islands, and Liberia. Anders Celsius created a temperature scale that was the reverse of the scale now known as "Celsius": 0 represented the boiling point of water, while 100 represented the freezing point of water.