Simplify the following text for a Grade 11 native English-speaking person.
Original: Norbert Wiener ( Columbia , Missouri , November 26 , 1894 â `` Stockholm , Sweden , March 18 , 1964 ) was an American theoretical and applied mathematician .
Simplified: Norbert Wiener ( November 26 , 1894 , Columbia , Missouri â `` March 18 , 1964 , Stockholm , Sweden ) was an American mathematician .