Zachdrias Jasen produced the first compound microscope
Robert Hooke was the first to discover cells and was known for coining the word "cells"
Anton Van Leeuwenhoek was the first person to see micro-organisms, including bacteria as well as blood flow in capillaries.
Louis Pastuer discovered the principles of vaccination, microbial fermentation and pasteurization. He is remembered for his remarkable breakthroughs in the causes and prevention of diseases, and his discoveries have saved many lives ever since
Matthias Schleiden had made a discovery showing the plants have cells
Theodor Schwann made the discovery and study of pepsin, the discovery of the organic nature of yeast, and the invention of the term metabolism. He even realized that all animals have cells
Rudolf Virchow came to the conclusion that all cells came form other cells the might be died or alive