Simplify the following text for a Grade 6 native English-speaking person.
Original: Paul Hermann MÃ 1\/4 ller also known as Pauly Mueller ( January 12 , 1899 -- October 12 , 1965 ) was a Swiss chemist and Nobel laureate .
Simplified: Paul Hermann MÃ 1\/4 ller ( January 12 , 1899 â `` October 12 , 1965 ) was an Swiss chemist .