What temperature does Anders Celsius define as freezing on his scale?

Anders Celsius defined the freezing point of water as 0 degrees Celsius on his temperature scale. This system is based on the behavior of water, with 0 degrees marking the point where water freezes and 100 degrees marking the boiling point of water at standard atmospheric pressure. Celsius's scale establishes a direct relationship between the physical states of water and temperature.

The other temperatures mentioned do not correspond to the definition of freezing according to Celsius. For instance, 100 degrees Celsius represents boiling water, while 32 degrees Fahrenheit corresponds to 0 degrees Celsius in a different temperature scale. The reference to 273 degrees Kelvin relates to absolute zero and is not at all connected to the freezing point of water on the Celsius scale. Therefore, 0 degrees Celsius is the accurate and scientifically recognized mark for the freezing point defined by Anders Celsius.