He portrayed a vision of the future of human discovery and knowledge. This is especially true for the discovery and observation of transient events. Bacteria were Leeuwenhoek's most remarkable microscopic discovery. This was the crucial step in the serendipitous discovery of lysosomes. She later goes on a journey of discovery. These observations of antibiosis between microorganisms led to the discovery of natural antibacterials. Later he made yet another interesting discovery. Serendipity is the occurrence of an unplanned fortunate discovery. He also noted some of the practical benefits of this discovery. The work of drug discovery then began. The island is named after the day of its recorded discovery, Ascension Day. These have been the voyages of the Space Shuttle Discovery. Difficulties in identifying legitimate targets and concerns about discovery limited their operations. I think it's a process of discovery. Variolation served as a natural precursor to the discovery of vaccination.