Convert Fahrenheit to Celsius

The Fahrenheit scale was developed by the German physicist Daniel Gabriel Fahrenheit in the early 18th century, specifically in 1724. Fahrenheit chose 32°F as the freezing point of water and 212°F as the boiling point of water under normal atmospheric pressure. The scale was based on several reference points, including the freezing point of water, the temperature of a mixture of ice and salt (which he set to 0°F), and the human body temperature, which he initially set at 96°F (later adjusted to 98.6°F). The Fahrenheit scale was widely used in English-speaking countries, particularly the U.S., until the adoption of the Celsius and Kelvin scales in scientific communities. It remains in common use for everyday temperature measurements in the U.S. and some Caribbean nations.

The Celsius scale was developed by the Swedish astronomer Anders Celsius in 1742. Initially, Celsius defined 0° as the boiling point of water and 100° as the freezing point, but his scale was later inverted by other scientists, including Carolus Linnaeus. The modern Celsius scale, with 0°C as the freezing point and 100°C as the boiling point of water, became standard. The scale is part of the International System of Units (SI), and it is widely used in science, industry, and everyday life.