10.000-7000 BC.: Late Neolithic pottery found on an islet to the northof Didyma.
5000 BC.: Tools made of obsidian found a few kilometres north and south from Didyma.
1500 BC.: Bronze weapons from a grave (or graves), 2 klm. south from Didyma.
Late 2nd millenium BC.: Mycenaean kylix fragment near to the temple of Apollo.
700 BC.: Construction of the cella Ι round the sacred well.
600/550 BC.: Construction of the first small temple.
7th cent. BC.: Processions from Miletus to Didyma.
after 608 BC.: The Pharaoh Necho dedicated clothing or weapons to Apollo.
6th cent. BC.: King Croesus sent votives to Didyma. Marble statues of the so-called "Branchidai".
560/530 BC.: The construction of temple ΙΙ began (later the plan was changed).
494 BC: King Darius besieged Miletus - Didyma as well ?
479 BC.: The procession from Miletus to Didyma was re-institutionalized.
330 BC.: The construction of temple ΙΙΙ began.
ca. 300 BC.: The construction of the small temple ΙV was completed. The athletic and music competitions in honour to Apollo were mentioned for the first time.
277/276 BC.: The Gauls raided the sanctuary's treasures.
Late 3rd cent. BC.: The Great "Didymeia".
219-217 BC.: The walls of the adyton were completed by half.
ca. 160 BC.: The walls of the adyton were almost completed.
44 BC.: Caesar extended the privilege of asylum to the sanctuary of Apollo.
AD 101/102: The end of the Sacred way was laid by marble slabs (in Trajan's time).
AD 120-170: The construction works on the temple were intensified.
AD 391-400: Pagan worship was ended.
5th /6th cent. AD: A Christian basilica existed inside the sanctuary.
after 6th cent. AD: Oliculture in the area around Didyma.
AD ca. 700: Construction of a fort inside the temple of Apollo.14th cent. AD: The Seljucs captured the fort-temple.
AD 1493: The temple was destroyed by an earthquake.