but there is one more…u forgot our Lethal 
these 4 go hand in hand 
On a more serious note : The date is 3rd December
The PPL are :
Franklin D. Roosevelt
Roosevelt had Polio, was governor of New York State then elected President of the United States for 4 terms.
Ludwig van Beethoven
(Famous Musician) - known to be deaf
Albert Einstein
The Mathematician/Physicist who had a learning disability and did not speak until age 3. He had a very difficult time doing maths in school. It was also very hard for him to express himself through writing