who discovered sperm cells
Quick Answer. Cells were discovered in 1665 by Robert Hooke, whose findings were published in the book Micrographia.. The second scientist to observe cells was Anton van Leeuwenhoek. In his work, he discovered bacteria, as well as sperm and egg cells, which disproved the theory of spontaneous generation. Hooke later confirmed van Leeuwenhoek`s findings.