The first description of the cell was published in 1665. In 1675, unicellular organisms became known

The first description of the cell was published in 1665. In 1675, unicellular organisms became known. What are the names of the scientists who made these discoveries. Can these dates be regarded as the origin of cytology as a science?

1665 g Robert Hooke first reported the existence of a cell.
1675 Levenguk discovered unicellular organisms.
This cannot be considered the origin of cytology as a science, because it was a descriptive period, only in the 18th century did cytology begin to develop as a science.

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