This is a list of the primary sources in my research.*
All dates are BC (BCE) and many are approximate.
Homer..............8th or 7th century, Greek poet.
Hesiod.............8th or 7th century, Greek poet.
Epic Cycles........8th-6th century. Collection.
Homeric Hymns......7th-5th century. Collection.
Seventh Century
Hymn to Demeter....Early 7th century.
Archilochus........680-645 Iambic poet of Paros.
Semonides..........mid-7th Iambic poet of Samos.
Callinus...........mid-7th Elegiac poet of Ephesus.
Alkman.............mid-7th Lyric poet.
Stesichorus........640-555 Lyric poet.
Solon..............638-558 Ruler of Greece: 594, Elegiac poet.
Thales.............624-546 Of Miletus. Mathematician, first "philosopher."
Alcaeus............620-580 Lyric poet of Lesbos.
Sappho.............620-570 Lyric poet of Lesbos (Plato: "the tenth Muse").
Tyrtaeus...........late-7th Elegiac poet of Athens and Sparta.
Mimnermus..........c.630 Elegiac poet.
Susarion...........c.600 Iambic poet of Megera (first comedy?).
Sixth Century
Iacchus Eleusis....Beginning of 6th century.
Pythagoras.........582-507 Mathematician and philosopher.
Anacreon...........c.570 Lyric poet.
Simonides..........556-469 Of Ceos. Lyric poet.
Hecataeus..........550-480 Geographer from Miletus.
Theognis...........c.544 Elegiac poet.
Hipponax...........c.540 Iambic poet of Ephesus.
Heraclitus.........535-475 Pre-Socratic philosopher of Ephesus.
Aeschylus..........525-456 Athenian tragic dramatist, b. Eleusis.
Pindar.............518-438 Lyric poet.
Bacchylides........c.518 Lyric poet.
Fifth Century
Persian War........500-479 Greece vs Persia.
Sophocles..........496-406 Greek tragic dramatist.
Antiphon...........479-411 Attic orator.
Herodotus..........484-425 Greek historian of Persian War, etc.
Euripides..........480-406 Greek tragic dramatist.
Socrates...........469-399 Greek philosopher. Mentor of Plato
Critias............460-403 Politician (pro-Sparta), Elegic poet. Cousin of Plato.
Thucydides ........460-400 Greek historian of Peloponnesian War.
Lysias.............459-380 Attic orator; son of Cephalus, a Syracusan.
Aristophanes.......448-388 Greek playwright, Athenian comic poet.
Pericles...........443-429 Period of rulership. The Age of Pericles
Andocides..........440-390 Attic Orator.
Isocrates..........436-338 Attic Orator. Pupil of Socrates and of the Sophists.
Peloponnesian War..431-404 Athens against Sparta.
Xenophon...........430-355 Greek historian, b. Athens. Pupil of Socrates.
Plato..............427-347 Greek philosopher. Pupil of Socrates.
Diogenes...........412-323 Greek Cynic philosopher; pupil of Antisthenes.
Athens Loses War...404 Sparta lays seige to Athens. Athens capitulates.
Rule of the 30.....404-403 The 30 included Plato's uncle Charmides and cousin Critias.
Cyrus and 10,000...401 Anabasis is Xenophon's eyewitness account.
Forth Century
Socrates Executed..399 For corrupting youths and introducing new gods.
Lycurgus...........396-325 Attic Orator.
Aeschines..........390-314 Attic Orator.
Aristotle..........384-322 Greek philosopher. Pupil of Plato. Teacher of Alexander.
Demosthenes........384-322 Attic Orator, generally considered the greatest.
Demades............380-319 Athenian orator and demagogue.
Dinarchus..........361-291 Last of the ten Attic Orators.
Plato's Memoir.....350 Plato's autobiographical seventh epistle.
Plato Dies.........347 Laws and Critias left unfinished.
Alexander..........336-323 The Great. Student of Aristotle.
Late sources of minor interest and relevancy are limited to the Alexandria-based poets.
Apollonius.........270-245 Of Rhodes. Alexandrian poet.
Bion...............c.250 Bucolic poet.
Moschus............c.250 Bucolic poet.
Theocritus.........c.250 Bucolic poet.