Simplify the following text for a Grade 7 native English-speaking person.
Original: The unit associated with the scale is called RÃ aumur , named after the physicist RenÃ - Antoine Ferchault de RÃ aumur who created it in 1731 .
Simplified: The scale is named after RenÃ Antoine Ferchault de RÃ aumur , who first proposed something similar in 1730 .