
When was Penicillin discovered?
Answer: In the Year 1928
Explanation:
Penicillin was discovered in 1928 by Scottish scientist Alexander Fleming at St. Mary's Hospital in London. This groundbreaking discovery happened quite by accident, making it one of the most famous serendipitous moments in medical history.
The story begins when Fleming was working with Staphylococcus bacteria in his laboratory. He had left some bacterial culture plates uncovered by mistake before going on vacation. When he returned, he noticed something unusual – a mold had contaminated one of his culture plates, and around this mold, the bacteria had been killed. Instead of throwing away the contaminated plate, Fleming's curiosity led him to investigate further.
Fleming identified the mold as belonging to the genus Penicillium, which is why he named the substance it produced "penicillin." He discovered that this mold could kill various harmful bacteria, including streptococci, staphylococci, and pneumococci. This was revolutionary because it meant that a natural substance could fight bacterial infections.
However, Fleming's initial discovery was just the beginning. While he published his findings in 1929, he faced challenges in purifying and mass-producing penicillin. It wasn't until the early 1940s that scientists Howard Florey and Ernst Boris Chain developed methods to mass-produce penicillin, making it available as a life-saving antibiotic during World War II.
The discovery of penicillin in 1928 marked the beginning of the antibiotic era, saving millions of lives worldwide. Fleming's accidental discovery transformed modern medicine and earned him the Nobel Prize in Physiology or Medicine in 1945, which he shared with Florey and Chain. Today, penicillin and its derivatives remain among the most important antibiotics used to treat bacterial infections.












