Temperature scale invented 1714 by Gabriel Fahrenheit which was commonly used in English-speaking countries until the 1970s, after which the Celsius scale was generally adopted, in line with the rest of the world. In the Fahrenheit scale, intervals are measured in degrees (şF); şF = (şC x 9/5) + 32.
Fahrenheit took as the zero point the lowest temperature he could achieve anywhere in the laboratory, and, as the other fixed point, body temperature, which he set at 96şF. On this scale, water freezes at 32şF and boils at 212şF.
A system of measuring temperature; 32 is the melting point of ice and 212 is the boiling point of water.