Cells— the tiniest unit of every living organism can be as simple as Amoeba or as complex as animals, plants, and humans. They are so tiny that they are invisible to the naked eye. Yet, it was the entrepreneurship of Dutch cloth merchant Antonie van Leeuwenhoek who while checking the quality of fabrics in cloths, assembled what we call the first microscope and ended up discovering the cells. Some of the initial work, independent of Leeuwenhoek, done by English scientist Robert Hooke resulted in the discovery of cells.
It was Hooke who coined the term 'Cell'. Nearly five hundred years since both of their works, most of us are content to know about the cell through school textbooks.