What Alexander Fleming discover?

Answer:
Penicillin was discovered by Howard Florey but because the initial observations were made when Alexander Fleming was the supervising scientist, he claimed the invention as his. He took (stole?) some penicillin and went on a publicity tour of America thus that country attributes the development of penicillin to him.
First answer by ID3416365402. Last edit by Cmcnaught. Contributor trust: 41 [recommend contributor recommended]. Question popularity: 1 [recommend question].