Given a reference text about Lee Kuan Yew, tell me when they were born, when they were president, and what their most famous accomplishment was in office.

Lee Kuan Yew was born on 16 September 1923. 
He served as the inaugural Prime Minister of Singapore from 1959 to 1990.
His most famous accomplishment in office was overseeing Singapore's transformation from an island nation with a high illiteracy rate and no natural resources into a developed country with a high-income economy within a single generation, commonly termed (from his autobiography) as 'From the third world to the first world.