Anaxagoras studies the Moon — Describes Eclipses of the Sun and Moon — IS Tried and Condemned for Denying that the Sun is a God — Hippocrates the Father of Medicine — Separates the office of Priest and Doctor — Studies the Human Body Eudoxus has an Observatory — Makes a Map of the Stars Explains the Movements of the Planets — Democritus studies the Milky Way — Aristotle an Astronomer and Zoologist Divides Animals into Classes — Teaches that there is a Gradual.