I'm a scientific discovery that changed the world, yet I was made by accident. What am I?
Category: Knowledge · Difficulty: medium
Hint: A mold played a key role in my creation.
Answer
Penicillin
Explanation
Penicillin was discovered by Alexander Fleming when he noticed mold inhibiting bacteria.
This is a medium knowledge riddle — a moderate challenge for most people. The answer is Penicillin.
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