Simplify the following text for a Grade 12 native English-speaking person.
Original: Charles Robert Knight ( October 21 , 1874 in Brooklyn â `` April 15 , 1953 in Manhattan ) was an American artist best known for his influential paintings of dinosaurs and other prehistoric animals .
Simplified: Charles Robert Knight ( Brooklyn , October 21 , 1874 â `` Manhattan , April 15 , 1953 ) was an American artist famous for his paintings of dinosaurs and other prehistoric animals .