1590 - Dutch spectacle-makers, Hans Janssen and his son Zacharias Janssen[?], claimed by later writers (Pierre Borel 1620 - 1671 or 1628 - 1689 and Willem Boreel 1591 - 1668) to have invented a compound microscope[?], but this is disputed.
1609 - Galileo Galilei develops an occhiolino or compound microscope with a convex and a concave lens.
1624 - Galileo presents his occhiolino to Prince Federico Cesi, founder of the Accademia dei Lincei (in English, The Linceans).
1625 - Giovanni Faber of Bamberg (1574 - 1629) of the Linceans coins the word microscope by analogy with telescope.
1665 - Robert Hooke publishes Micrographia, a collection of biological micrographs. He coins the word cell for the structures he discovers in cork bark.
... 24, 1864. On May 10, 1873, at his request, he was permitted to travel to Molokai to help the lepers who had virtually nothing to keep them warm or fed. After twelv ...