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740 BCE - 433 BCE: Greek poleis or city-states establish colonies in Magna Graecia.
740 BCE: Chalcis founds the colony of Cumae in Magna Graecia.
734 BCE: Chalcis founds the colony of Naxos on Sicily.
733 BCE: Corinth founds the colony of Syracuse in Sicily.
733 BCE: Traditional date when Corinth founds a colony on Corcyra.
720 BCE: Sybaris in Magna Graecia founded by Archaean settlers.
720 BCE: Chalcis founds the colony of Rhegium in Sicily.
710 BCE: Croton in Magna Graecia founded by Archaean settlers.
706 BCE: Sparta founds the colony of Tarentum in Magna Graecia.
688 BCE: Rhodes and Cretans found Gela in Sicily.
685 BCE: Megara founds the colony of Chalcedon.
675 BCE: Miletos founds the colony of Kyzikos in the Black Sea area.
668 BCE: Megara founds the colony of Byzantium.
631 BCE: Miletos founds the colony of Sinope in the Black Sea area.
630 BCE: Selinus is founded by colonists from Megara Hyblaea, Sicily.
630 BCE: Thera founds the colony of Cyrene in North Africa.
630 BCE: Messana founds the colony of Himera on Sicily.
600 BCE: Phocaea founds the colony of Massilia.
600 BCE: Miletos founds the colony of Pantikapaion in the Black Sea area.
580 BCE: Agrigento in Sicily is founded by colonists from Gela, Crete and Rhodes.
575 BCE: Massalia founds the colony of Emporion in Spain.
560 BCE: Megara founds the colony of Herakleai Pontike in the Black Sea area.
550 BCE: Miletos founds the colony of Olbia in the Black Sea area.
540 BCE: Phocaea founds Elea in Magna Graecia.
525 BCE: Second wave of emigration of Greeks to Massilia.
443 BCE: Thurii in Magna Graecia founded by Athenian settlers.
437 BCE: Athens founds the colony of Amphipolis in northern Macedonia.
433 BCE: Tarentum founds Heraclea in Magna Graecia.
420 BCE: Herakleia founds the colonies of Chersonesos in the Crimea.
415 BCE: Athens launches an expedition against Sicily, the pretext being protection of Segesta.
300 BCE - 200 BCE: Greek colonists set up an emporion (trade centre) at Salona.