Q. Who invented the Centigrade scale? Answer:
Anders Celsius
Notes: Swedish astronomer Anders Celsius invented the Celsius temperature scale in 1742 A.D. The Celsius scale invented by him has 100 degrees between the freezing point (0 C) and boiling point (100 C) of pure water at sea level air pressure. The term “Celsius” was adopted in 1948 by an international conference on weights and measures.