Leiden Scale to Newton

Leiden Scale (L): The Leiden Scale is a historical temperature scale used in the early 20th century, particularly at the Leiden University lab, for measuring extremely low temperatures, primarily for values below -183 °C.

Newton (°N): The Newton scale was devised by Isaac Newton around 1700. It used the freezing point of water as 0 and the boiling point as 33. It is considered a direct predecessor to the Celsius scale.