The first person to see microorganisms was:

📌 Concept:
-Robert Hooke and Antonie Van Leeuwenhoek discovered the presence of microorganism.
-It was discovered in 1665-83.
-Antonie Van Leeuwenhoek made single-lens microscopes, to make the first observations of bacteria and protozoa. 

✅ Explanation:
-His extensive research on the growth of small animals such as fleas, mussels, and eels helped disprove the theory of spontaneous generation of life.
-They used a microscope that magnified objects from about 25-fold to 250-fold.
-Antonie Van Leewenhoek is considered to be the Father of Microbiology.