In the late 16th century several Dutch lens makers designed devices that magnified objects, but in 1609 Galileo Galilei perfected the first device known as a microscope. Dutch spectacle makers Zaccharias Janssen and Hans Lipperhey are noted as the first men to develop the concept of the compound microscope.
A group of individuals of the same species that interact will find a mate and cross breed and produce a stronger species to survive they're environment. per Darwin's law..
