Mathematics
Greek Mathematics provides a useful introduction to the contribution of the ancient Greeks to the subject.
A Chronological List of Mathematicians tells you all the Greek mathematicians and their dates. Some of the mathematicians are linked to their own pages which give more information. This page also has two nice maps showing where the mathematicians lived.
Also learn about Greek contributions to the study of Mathematics in the Index of Ancient Greek mathematics and 15 Greek Famous Greek Mathematicians and their Contributions.