Antoni van Leeuwenhoek was a Dutch scientist born in 1632, known as the "Father of Microbiology." He is famous for his pioneering work in microscopy, using simple microscopes he crafted himself. His observations of tiny organisms, which he called "animalcules," laid the foundation for the field of microbiology. Van Leeuwenhoek's meticulous studies revealed a previously unseen world of bacteria, protozoa, and other microorganisms. His discoveries significantly advanced the understanding of biology and helped establish the importance of microscopy in scientific research. He communicated his findings to the Royal Society in England, influencing future generations of scientists.