He died at 74 years old.
Alexander Fleming was 73 years old when he died on March 11, 1955 in London,England.
Sir Alexander Fleming was born on August 6, 1881 and died on March 11, 1955. Sir Alexander Fleming would have been 73 years old at the time of death or 133 years old today.
Alexander Fleming - doctor - died in 1875.
Alexander Fleming died on March 11th, 1955, at the age of 73.
Sir Alexander Fleming died on March 11, 1955 at the age of 73.
Sir Alexander Fleming, the discoverer of penicillin, died on March 11, 1955.
He died in 1955.
Alexander Fleming died rich because his discovery saved so many lives!
Ian Fleming was 56 years old when he died on August 12, 1964. (birthdate May 28, 1908)
Alexander Fleming was born on 6 August 1881 and died of a heart attack on 11 March 1955 at the age of 73.
Fleming died at his home in London of a heart attack in 1955.
Alexander died in London on March 11th from a hert attack