Podcast:History Dispatches Published On: Wed Sep 03 2025 Description: In the summer of 1928 one of the happiest accidents in history occurred. Scottish Professor of Bacteriology Alexander Fleming returned from holiday to find bacteria samples had been left out, and one of them grew mold killing the bacteria. The mold was Penicillium Notatum, and it would save millions of lives. This is the story of the discovery of Penicillin. Sources https://pmc.ncbi.nlm.nih.gov/articles/PMC5403050/#sec6 https://www.acs.org/content/dam/acsorg/education/whatischemistry/landmarks/flemingpenicillin/the-discovery-and-development-of-penicillin-commemorative-booklet.pdf Image: https://commons.wikimedia.org/wiki/File:Sample_of_penicillin_mould_presented_by_Alexander_Fleming_to_Douglas_Macleod,_1935_(9672239344).jpg History Dispatches is part of the Airwave Media Network: www.airwavemedia.com Interested in advertising on History Dispatches? Email us at advertising@airwavemedia.com Learn more about your ad choices. Visit megaphone.fm/adchoices