Use "alexander fleming" in a sentence

1. Alexander Fleming, in full Sir Alexander Fleming, (born August 6, 1881, Lochfield Farm, Darvel, Ayrshire, Scotland—died March 11, 1955, London, England), Scottish Bacteriologist best known for his discovery of penicillin

2. Antibiotics have been around since 1928 when penicillin was discovered by Alexander Fleming.

3. Alexander Fleming was a doctor and Bacteriologist who discovered penicillin, receiving the Nobel Prize in 1945.