Like the “letting in of water,” light at once poured in from all sides on the prehistoric period of Greece. It was established that the character of both the fabric and the decoration of the Mycenæan objects was not that of any well-known art. A wide range in space was proved by the identification of the _inselsteine_ and the Ialysos vases with the new style, and a wide range in time by collation of the earlier Theræan and Hissarlik discoveries. A relation between objects of art described by Homer and the Mycenæan treasure was generally recognised, and a correct opinion prevailed that, while certainly posterior, the civilisation of the _Iliad_ was reminiscent of the great Mycenæan period. Schliemann got to work again at Hissarlik in 1878, and greatly increased knowledge of the lower strata, but did not recognise the Mycenæan remains in his “Lydian” city of the sixth stratum; but by laying bare in 1884 the upper remains on the rock of Tiryns, he made a contribution to the science of domestic life in the Mycenæan period, which was amplified two years later by Tsountas’ discovery of the Mycenæ palace. From 1886 dates the finding of Mycenæan sepulchres outside the Argolid, from which, and from the continuation of Tsountas’ exploration of the buildings and lesser graves at Mycenæ, a large treasure, independent of Schliemann’s princely gift, has been gathered into the National Museum at Athens. In that year were excavated dome-tombs, most already rifled, in Attica, in Thessaly, in Cephalonia, and Laconia. In 1890 and 1893 Stæs cleared out more homely dome-tombs at Thoricus in Attica; and other graves, either rock-cut “beehives” or chambers, were found at Spata and Aphidnæ in Attica, in Ægina and Salamis, at the Heræum and Nauplia in the Argolid, near Thebes and Delphi, and lastly not far from the Thessalian Larissa. But discovery was far from being confined to the Greek mainland and its immediate dependencies. The limits of the prehistoric area were pushed out to the central Ægean islands, all of which are singularly rich in evidence of the pre-Mycenæan period. The series of Syran built graves, containing crouching corpses, is the best and most representative that is known in the Ægean. Melos, long marked as containing early objects, but not systematically excavated until taken in hand by the British School at Athens in 1896, shows remains of all the Ægean periods.